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SIGNS OF GOOD BREEDING: PIPING PLOVERS IN SUMMER


Piping Plover Charadrius melodus (Ontario, MDF / wiki)

SIGNS OF GOOD BREEDING: PIPING PLOVERS IN SUMMER

No apologies for writing again about Piping Plovers. This rare bird – only 8000 left in the world – overwinters in Florida, on the Gulf Coast, and to a notable extent in the Bahamas, very possibly on a beach near you. The peacefulness and cleanliness of Abaco’s pristine beaches provide the ideal habitat for the little PIPL to live safe and healthy lives during the winter, in preparation for their return to their summer breeding grounds. And breeding is what they are doing right now, up north. There are breeding populations on the Atlantic Coast, the Great Plains, and the Great Lakes. So I thought I’d feature a few images of what appears to be a rather successful season so far…

One of the best bird blogs around, one that I have recommended before, is called READINGS FROM THE NORTHSIDE. It is written in an informative yet witty style illustrated with excellent photos, and chronicles the daily avian goings-on on Long Beach Island NJ, an important nesting area for piping plovers. There are links with Todd Pover and Stephanie Egger, two scientists from the Conserve Wildlife Foundation of NJ who will be familiar to many Abaconians for the winter work they do with the plovers on Abaco. The photos below have almost all been taken this month as the PIPL chicks hatch and begin to find their feet in a big world.

Piping Plover LBI 1   Piping Plover LBI 2 piping-plover-chick-sneaking-through-dune piping-plover-sit-in-dune

NEWLY HATCHED (TUFTERS’ & TACEY’S 4th CHICK, AMY) piping-plover-wet-chick1

TIDYING THE EGGSHELLpiping-plover-with-eggshell

EGGSHELL REMOVALpiping-plover-remove-eggshell-nest

HAPPY FAMILIES…piping-plover-chick-leaves-nest

MORE HAPPY FAMILIES IMG_0853 IMG_0856 IMG_0855 IMG_0854

BARNEGAT LIGHTHOUSE WITH PIPL IN THE FOREGROUND!IMG_0857

Most regrettably, you’ll never see a Piping Plover chick on Abaco. The adult birds have left the Bahamian beaches and flown north before their breeding season begins. These little creatures are both rare and special at both ends of their migration range, so I’ll end with a video from the most excellent CONCH SALAD TV that is dedicated to these tiny wave-chasers. Abaco is one of the main areas for winter research into the piping plover population. Scientists visit the island to find the birds, count them, collect reports of sightings, check and identify tagged birds to determine their origin, and ensure the continuing good health of their habitat, without which the PIPL will be lost. You can find out more about this vital work carried out out by the CONSERVE WILDLIFE FOUNDATION OF NEW JERSEY HERE.

THE DELICATE TASK OF RINGING TINY BIRDS
lbi-piping-plover-chick

Credits: MLF/ Ontario; Exit63 ‘Mr Norfside’ to whom a major tip o’ the hat; Conch Salad TV

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FERAL PEACOCKS: SOMETHING COMPLETELY “DIFFERENT (OF ABACO)”


Peacock, Casuarina, Abaco (Sally Salvesen)

FERAL PEACOCKS: SOMETHING COMPLETELY “DIFFERENT (OF ABACO)”

Driving the Highway south from Marsh Harbour, past the turn-off to Winding Bay and Cherokee, you reach an unassuming side road. This takes you to Casuarina, its gorgeous beach and the canal cut that leads to Cherokee Sound and … bonefish. At the junction you can hardly fail to see the large, time-worn notice for “Different of Abaco“, the former fishing lodge owned by Nettica Symonette. It has been defunct for many years. The lodge buildings are sadly dilapidated and *safety alert* the wooden boards are frail. The grounds are romantically overgrown, and dotted with half-concealed derelict vehicles and machinery rusting away benignly as the seasons pass. The large ponds that must have once been attractive are brackish and uninviting. But guess what! The place is a haven for birds.

Peacock, Casuarina, Abaco (Keith Salvesen)

The most surprising sight is of peafowl – the collective name for peacocks, peahens and peachicks. This flamboyant species was introduced many years ago as a decorative addition to the Lodge and its grounds. It was part of a wider, more ambitious scheme to reintroduce a breeding flock of flamingoes to Abaco. These had regrettably become extirpated from the island and then, as now, were only found as vagrant individuals. The attempt sadly failed and the flamingoes disappeared. Rumours sometimes surface of breeding pairs far out on the Marls or in a secluded place in the far south of the island, but these remain unsubstantiated. The peafowl introduction, however, has proved to be an unexpected success.

Peacock, with bizarre graffiti addressed to Santa ClausFeral Peacock, Casuarina, Abaco (Keith Salvesen)

Peahen in the garden of “Different of Abaco”Peahen, Casuarina, Abaco (Sally Salvesen)

Peacocks swaggering in the grounds: note the fully feathered tails (cf photo #2  above)Peacock, Abaco (Nina Henry) 1Peacock, Abaco (Nina Henry) 3

The compilation of “THE BIRDS OF ABACO” involved plenty of decision-making. We obviously couldn’t feature every recorded species – for a start, for many species there were merely reports of sightings but no (or only inadequate) photographs. One interesting factor for consideration was the stage at which an introduced species becomes bird OF Abaco as opposed to a non-indigenous bird that happens to be IN Abaco.

1610795_10152397349768720_8542277013207863186_n10345763_10152398046303720_8315779621600880072_n10524740_10152397350053720_2270412119470328978_n10306740_10152397712968720_2616129013617847509_n    10647090_10152398010393720_8268702990135221309_n

Rhonda Pearce’s Peafowl Gallery (NB peachicks included!) above demonstrates why this species was an easy choice for inclusion. On the assumption that the original birds were brought to the Lodge in the late ’80s or early ’90s, the chicks you see here must be several generations down the line. A breeding population has been established in the wild, as the grounds of D of A have become. The evidence is that it is spreading slowly – across the road, further into the settlement at Casuarina and recently even further afield.

Celia Rogers photographed this cluster of peahens in Casuarina – but the two males were on the road to Cherokee, maybe 3 or 4 miles distance to the north as the peacock struts

Peahens, Casuarina (Celia Rogers)Peacocks (Cherokee Road)  Abaco (Celia Rogers)

So that’s how the feral peacocks of Abaco come to be classified (in a purely unofficial way) as birds OF Abaco for the purposes of the book**. Once they would have been viewed as pets – like the muscovy ducks that can be found in a few places, Gilpin Point for example. But in the wilderness that Different of Abaco has become for many years, the descendants of the original peacocks are breeding contentedly, expanding their population, and are wholly unreliant on human intervention. Verily feral, in fact.

**That, and the fact that Mrs RH borrowed my camera and undeniably took the best photos of the male and female birds (#1 and #4 above), as seen on pp 70-71 of the book…

Peacock, Abaco (Liann Key Kaighin) 1

D of A: the glory daysimg0049

Credits: Mrs RH (1, 4); RH (2, 3); Nina Henry (5, 6); Rhonda Pearce (7 – 11); Celia Rogers (12, 13); Liann Key Kaighin (14); added final image π “The Abacos” online

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FORAYS WITH MORAYS (2): SPOTTED IN THE BAHAMAS…


Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba)

FORAYS WITH MORAYS (2): SPOTTED IN THE BAHAMAS…

I’ve been neglecting the moray eels. It’s ages since I did a post about them, and it’s time to put that right. Specifically, time to take a look at Spotted Morays Gymnothorax moringa. These eels can grow up to 2 meters, and live mainly in the sub-tropical waters of the Atlantic. They are solitary creatures, most often seen with just their heads protruding from holes and fissures reefs and r0cks. They have interesting dental arrangements (see below) and their bite is one that, all things being equal, is probably best avoided… Here’s what to look for.

ADULT SPOTTED MORAYSSpotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba) Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba) Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba) Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba)

TOOTHSOME CRITTERS (FANGS FOR THE MEMORY…)Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba) Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba) Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba)

WICKLE BABY MORAY. MORAYKIN?BABY Spotted Moray Eel, Bahamas (Melinda Riger Grand Bahama Scuba)

Photo credits: all amazing photos courtesy of Melinda Riger of Grand Bahama Scuba; Props to ‘Earl the Eel’ who appears in some of them!

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KILLDEER ON ABACO? IT DOESN’T, BUT ACE NAME ANYWAY


Kildeer, Abaco (Bruce Hallett)

KILLDEER ON ABACO? IT DOESN’T, BUT ACE NAME ANYWAY

The KILLDEER Charadrius vociferus is a fairly common winter resident plover on Abaco. They can often be found on the Delphi beach, and the lovely beach at Casuarina is another place to spot them. They can easily be distinguished from other plover species, being the only ones with two black frontal bands – see above and below. The lower picture, you’ll be relieved to hear, is not the fabled ‘legless killdeer’, but is simply having a little rest on a nice warm wall.

Killdeer, Abaco (Tony Hepburn)

The killdeer’s name is a bit of a puzzle, frankly. The Latin term Charadrius vociferus basically means “shouty plover”, but it’s a long way from that to “killdeer”. This is another one of those bird names that are allegedly onomatopoeic – and thankfully it has nothing whatsoever to do with savage behaviour involving Bambi and his ilk (or elk, even). Supposedly the killdeer call is “Kill…Deer”, in the same way as the bobwhite calls an interrogative “Bob…White?”. 

Killdeer - Harrold & Wilson Ponds, NP (Rick Lowe) copy

Consulting some random authorities reveals divergence of opinion on the issue, with definite bet-hedging between ‘kill-dee’ variations and ‘dee dee dees’. Except for Messrs Flieg & Sanders who opine (rudely) ‘the shrill, loud, monotonous call resembles its name’. Yet while I completely get the ‘Bob…White?’ thing, I’m not so sure with the killdeer. Were I a little killdeer, it’s a name I’d like to have anyway. Respect! But what do these sound like to you?

or this

Guillermo Funes Xeno Canto

or this

Peter Boesman Xeno CantoKIlldeer (Danny Sauvageau)

I’ve mentioned the distinctive double black breast-bands that distinguish the killdeer from its brother plovers. These can be seen at quite a distance, as this shot on the Delphi beach by Mrs RH shows (the tracks are from Smithy’s seaweed-clearing tractor).

Killdeer SS edits

The babies are, like all plover chicks, totes irresistibz munchkinsKilldeer hatchling (NTox)Killdeer FB

And like other plovers, a killdeer will defend its nest and young with a broken wing display to distract predators, lurching pathetically across the sand, moving ever further away from the nest. 

I think we can safely conclude that, while the bird doesn’t quite live up to the cervidae-cidal tendencies suggested by its name, nor even sound particularly as though it is saying “killdeer”, it is a very attractive plover to have around whatever the heck its call may resemble.Killdeer, Abaco (Erik Gauger)

Photo credits: Bruce Hallett, Tony Hepburn, Rick Lowe, Danny Sauvageau, Mrs RH, NTox, Very Recent FB & I’ll track down the source if it kills me**, Erik Gauger

** Got it now: The very excellent Mike Bizeau, whose on his wonderful NATUREHASNOBOSS website posts a single daily image. Many are birds, some are landscapes, some are other things that have caught his eye. I get a daily email, and am invariably impressed by the quality of the images…

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HOLE-IN-THE-WALL, ABACO: A UNIQUE PERSPECTIVE (2) PRESENT & FUTURE


Winslow Homer G W Original Brooklyn

HOLE-IN-THE-WALL, ABACO: A UNIQUE PERSPECTIVE (2) PRESENT & FUTURE

Following on from my post last month HOLE-IN-THE WALL: THE PAST, it’s time to take a closer look at the ‘Gap-in-the-Wall’ as it is today, viewed from the sea. I’ve called this a ‘unique perspective’, but I’m sure many people have taken photos of HITW from the sea. It just that apart from a few kayaking ones from before the collapse of the arch, I haven’t found them. So I took some, thanks to the BMMRO and their research RHIB. 

Hole-in-the-Wall Abaco (2015-2) 01 Location photo map

The view above is taken from some way to the west of HITW, and I have marked the main features that will be shown in this post. As one approaches the promontory, the lighthouse and its outbuildings are the only sign of human intervention to be seen in the landscape. Historically there were small settlements in this remote place, and some traces of these remain.

Hole-in-the-Wall Lighthouse Abaco (sea view)

Closing in on the former ‘Hole’, fresh damage from Hurricane Sandy’s destruction of the arch is still visible. It is more conspicuous on the other side.Hole-in-the-Wall Abaco (2015-2) 03 Collapsed arch (Hurricane Sandy)

In this photo, you can follow the features from the lighthouse to the foreshortened promontory, the new gap, the small islet that now exists, and finally a small eroded outcrop of rock – the remains of an extension of the mainland, and probably evidencing the southern tip of another arch that collapsed centuries ago.Hole-in-the-Wall Abaco (2015-2) 04 Light, hole and outcrop

Passing the outcrop and round to the east side of the promontory, further evidence of fresh damage can be seen, with the main shear being on the north side of the arch.Hole-in-the-Wall Abaco (2015-2) 05 Hole-in-the-Wall Abaco (2015-2) 09Hole-in-the-Wall Abaco (2015-2) 07Hole-in-the-Wall Abaco (2015-2) 10

There’s a fine view of the lighthouse from the east Hole-in-the-Wall Abaco (2015-2) 11

As we started the return journey to Sandy Point via groups of whales and dolphins, we went close to the outcrop, land’s end (next stop, Nassau). Even on a calm day, it is still thrashed by waves, as the second photo shows: no wonder it has eroded so quickly…  See how it looked in the 1803 aquatint below, from which one can see how there must have once been an even larger ‘hole in the wall’ way back in history and long since collapsed even by then. Hole-in-the-Wall Abaco (2015-2) 12 Hole-in-the-Wall Abaco (2015-2) 13Hole in the Wall Print 1803

Then it was time to move on, having been fortunate enough to see the location from an entirely new angleHole-in-the-Wall Abaco (2015-2) 14Hole-in-the-Wall Abaco (2015-2) 15

THE FUTURE

The geological future of the Hole-in the-Wall landscape is presumably that erosion and rising sea levels will sink the outcrop below the waves; the islet left after the collapse of the arch will similarly erode over the centuries, as in time will the whole promontory. Maybe as it gets thinner, another hole will be worn through by the waves. The restoration of the lighthouse, long promised, may perhaps take place. The nautical importance of the area suggests that the historic need for a light as both landmark and warning will continue. And who knows: even now, plans for wholesale redevelopment of the area could be on a drawing board somewhere…

Hole-in-the-Wall Lighthouse Abaco (Notice) hitw9

WINSLOW HOMER

The header image is the well-known watercolour by Winslow Homer (1836 – 1910), the original of which is in the Brooklyn Museum. It was painted in 1885 and is entitled ‘Glass Windows’. This is commonly claimed to be the famous ‘Glass Window’ feature on Eleuthera. However my own theory is that it in fact depicts Hole-in-the-Wall, Abaco. There are a number of good reasons for this, but the most immediately striking is the title Homer himself gave to an engraving of the identical view, published in The Century magazine (Feb 1887). This engraving pre-dates, and was clearly the template for, the watercolour. The rock structure and even the cloud formations are identical. And the title “On Abaco Island” seems conclusive of the location.

Hole-in-the-Wall Picture

Credits: All photos, RH; Winslow Homer painting, Brooklyn Museum online archive

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NORTHERN PINTAILS ON ABACO: LOOKING SHARP


Northern Pintail, Abaco (Keith Salvesen)

NORTHERN PINTAILS ON ABACO: LOOKING SHARP

The Northern Pintail Anas acuta is a relatively rare winter resident dabbling duck on Abaco. The species has a huge range, being found throughout much of the northern hemisphere. 

DABBLING DUCKS – PINTAILS UPNorthern Pintails (M & F) Up-ending (J M Garg)jpg

The ‘acuta’ in the Latin name refers to the characteristic sharp ‘pin tail’. As so often, the drake is a somewhat flashy specimen while the female is unassuming or, as some sources harshly put it, dull and drab. And while the drake makes a melodious whistle, the female simply quacks or croaks.

FLASHY MALENorthern Pintail, Abaco (Tony Hepburn)

DULL & DRAB FEMALE? DEBATABLE!Northern Pintail (f), Abaco (Keith Salvesen)Northern Pintail (f) x 4 (Woody Bracey)

Northern Pintails form flocks and are happy to mix with other species.  Their long necks give the edge over similarly-sized dabbling ducks such as the mallard, enabling them to reach deeper down in the water to feed.

Northern Pintail PM IMG_5342 copy 2

THREATS TO THE SPECIES

  • Predation of nests and chicks by animals and birds such as birds of prey and (some) gulls
  • Parasites including worms and lice, to which they seem to be susceptible; and avian diseases including bird ‘flu
  • Hunting: they are a good target species being swift and agile in the air (for sport) yet quite large (for success rate). Also, delicious (for dinner).
  • Lead poisoning from shot or angling tackle, research has shown. A major problem with all bottom-feeders, though improved where laws prohibiting lead shot have been introduced
  • Loss of wetland areas to agriculture or due to habitat or climate changes

Northern Pintail, Abaco (Keith Salvesen)

On Abaco, Northern Pintails arrive in the autumn and leave as spring approaches. They are most likely to be found on ponds such as the one at Treasure Cay Golf Course, where I photographed the male; and at Gilpin Point where I spotted the lone female (at a distance). Below are both genders together for comparison (NB not taken on Abaco). 

BREEDING TIME

Mating is aquatic, by the usual anatine method in which the female lowers herself in the water to indicate her agreement to the proposal whereupon the male tries to drown her. Apparently after mating, the male raises his head and whistles – whether as a signal that it’s all over or exaltation or relief has not been researched. Yet. 

Northern Pintails (M & F) J M Garg

 RELATED POSTS

BAHAMA (WHITE-CHEEKED) PINTAIL

BAHAMA PINTAIL PAGE

Credits: RH x 3, Peter Mantle x 1, Tony Hepburn x 1, Woody Bracey x 1, J M Garg x 2, Birdorable 

        northern-pintail        northern-pintail        northern-pintail

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WTF? (WHAT’S THAT FISH?) (4): THE BATFISH


Batfish (Brenda Bowling, Texas Parks & Wildlife Department)

WTF? (WHAT’S THAT FISH?) 4 : THE BATFISH

That’s ‘Batfish’ (or strictly, Batfishes, for there are some 60 species worldwide), as in one of the weirdest, most alien underwater creatures you may ever encounter. As opposed to ‘Bait Fish’, those little silvery specimens that are so attractive to predator fish higher up the food chain – the ones fishermen might be interested in… And the Batfish has no connection at all with Bruce Wayne of Wayne Manor, Gotham City nor with his sidekick Robin. Batfish (Brenda Bowling, Texas Parks & Wildlife Department) I mention this bizarre-looking and -acting creature because two have recently been seen and photographed in Abaco waters and although I’d heard of the batfish and even knew vaguely what one looked like, I was quite unprepared for the real thing. Ellen Sokol is a Captain for Kiskeedee Sailing Charters which during the summer is based in the Abacos and which amongst other things gives youngsters the opportunity to snorkel and to learn about undersea life. Ellen says: “I was snorkelling when I saw this thing on the bottom.  At first, I thought it was a dead bird!  It wasn’t moving at all even when I touched it with my flipper.  Later when I read about this fish I learned that it sits motionless and uses the long nose to attract prey.  I suppose that is exactly what it was doing when I rudely interrupted it! I later researched, and found it to be a spotted batfish”.   Because they had no underwater camera on board, Ellen’s son gently scooped it up in a net so they could take a quick photo of the fish before returning it. Quick thinking! Batfish, Abaco 1 (Ellen Sokol, Kiskeedee Sailing)Batfish, Abaco 3 (Ellen Sokol, Kiskeedee Sailing) The other recent sighting was posted with a photo on FB within the last 3 weeks by the excellent CRUISE ABACO.  Batfish (?Shortnose), Abaco Waters (FB, source unclear)

10 OGCOCEPHALIDAE (BATFISH) FACTS TO TREASURE

  • There are some 60 species of batfishes worldwide
  • They live in warm and temperate seas, including the waters of the Bahamas
  • An adult batfish is 12″ – 14″ in length
  • Their bodies are generally lumpy, with some hard spines
  • Some have a long, upturned snout. Others have bright red ‘lipstick lips’
  • They are rubbish swimmers, and often ‘walk’ on their limb-like pectoral and pelvic fins
  • Most species are deep sea denizens but some (short nose, spotted) inhabit shallower water
  • The fleshy snout above the mouth lures prey close enough to its jaws to eat
  • The batfish is becoming increasingly rare worldwide, and is considered to be endangered
  • Only the word ‘Logcock’ (pileated woodpecker) contains the initial 4 letters of Ogcocephalidae 

 CAN YOU SHOW ME SOME MORE EXAMPLES OF THIS INTRIGUING FISH?

By all means. Here are some images of other batfish species – red-lipped, long nosed, short nosed – each peculiar in its own way. You’ll see their preferred, most unfishlike method for getting around.

13179-004-429B61E0Red_lipped batfish (Barry Peters) Ogcocephalus_parvus Undersearch Research Program (NURP)Long-nosed Batfish Wiki

Shortnose Batfish Divephotoguide.com Eric Reich

Q. PLEASE MAY I SEE A VIDEO OF A BATFISH? A. YES. TWO.

“Heather Ashcraft found this very rare short-nosed bat fish on Eleuthera, Bahamas Sept 17 2013. It is a very strange (almost alien) looking combination of bat, frog, bird, and fish. The pelvic fins are used for walking on the ocean floor… Above the bat face is a horn (or beak)…”

“Taken at Coco Cay, Bahamas, April 29, 2014. At first we had no Idea what we were looking at… one of the weirdest things we had ever seen. Apparently they are rare. Even some of the locals had no idea what we were describing”

Batfish, Man-o-War Cay Abaco (Cheryl Marx MacKee)Batfish, Man-o-War Cay, Abaco (Cheryl Marx McKee)

Batfish, Abaco (Bob Williams August 2015)Batfish, Abaco, Bahamas (Bob Williams) Batfish, Abaco, Bahamas -2 (Bob Williams)

Credits: Header image courtesy Texas Parks and Wildlife Department (Brenda Bowling); Ellen Sokol and Kiskeedee Sailing Charters; Cruise Abaco; Wiki, Barry Peters, NURP, Eric Reisch; Youtubers x 2; Petersen, Arkive, Cheryl Marx MacKee, Bob Williams and sundry magpie pickings…
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‘RALPH’S OLD BAT’: ABACO’S ASTOUNDING UNDERGROUND CAVES (5)


Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 4

‘RALPH’S OLD BAT’: ABACO’S ASTOUNDING UNDERGROUND CAVES (5)

It’s time to revisit the wonderful caves that lie below the landmass of Abaco. Unknown to many, there are parts of the island where below your feet are huge networks of caves and tunnels packed with beautiful crystal and mystery. I lack any of the necessary qualifications to explore these for myself (some serious equipment including camera, ability to swim properly, and courage) but thanks to diving exert Brian Kakuk, my own deficiencies are irrelevant…

Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 3

Two caves in particular, Ralph’s and Dan’s, are rich in exotic crystals, stalactites and stalagmites. They can be found close to each other on South Abaco, deep in the pine forest. All images here are from Ralph’s cave, one of several cave / blue hole complexes that are soon to form part of the South Abaco Blue Holes Conservation Area (boundaries shown in fig. 1). Rolling Harbour (where the Delphi Club is situated) is the curved bay to the bottom right corner, under the acronym GEBCO

Abaco caves map jpg Abaco Caves Ralph & Dan jpg

Apart from the amazing sight of the cave chambers themselves, the details of the crystal formations – often geometric -are remarkable close-to. Here are 3 examples that demonstrate how they range from strong-looking structures formed over millennia to the most delicate forms such as in the third image that appear to be made from fine fabric.

Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 1 Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 2 Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 5

And if you wondering about the title of this post, this is the reason: Brian discovered a bat, believed to be at least 13,000 years old, entombed in crystal – not so much a fossilised bat as a crystallised bat… In other caves (at the Sawmill Sink blue hole for example), fossilised bones have been found, including of a prehistoric species of crocodile that must have lived on the island many thousands of years ago. This is the first crystallised creature I have ever seen… I am checking with Brian whether he has seen anything else quite like it during his explorations.

Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 6 Ralph's Cave, Abaco (Brian Kakuk) 15.5 : 7

Credits: all images by Brian Kakuk, with thanks as ever for use permission; all crystal by magic; preserved bat by gradual accretion

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“THEY CALL ME THE HUNTER…” A GREEN HERON ON ABACO


Green Heron, Gilpin Point, Abaco (Keith Salvesen)07

“THEY CALL ME THE HUNTER…” A GREEN HERON ON ABACO

There are a number of birding hotspots on South Abaco (defined loosely for avian purposes as south from Marsh Harbour). Most are attractive places to be; a few (e.g. the town dump) less so, requiring additional skills to avoid taking your long-awaited ‘life bird’ in a pool of grossness…

Always a good bet, Gilpin Point near Crossing Rocks is definitely worth a visit at almost any time, especially the brackish pond just inland from the shoreline. Bear in mind it is (a) a longish private road (we got a puncture down there once…*) and (b) it is private land. However Perry Maillis is always welcoming to tidy birders who bring only enthusiasm and take only pictures. Plus he very kindly changed our wheel! At the end of this post is a rough list of birds I have seen at Gilpin, with one or two that I know have also been seen there (photographic evidence!)

*I realise I should say we got a ‘flat’, but to me that would mean we had obtained an apartment. We are indeed “nations divided by a common language” (Attrib variously to Wilde, Shaw & Churchill)

We found this small Green Heron quite easily. We’d watched it fly onto a stump in the pond near the jetty, then fly closer to the shoreline. By tiptoeing onto the jetty, we could see it perched close to the water, inspecting it with a fierce and predatory eye. Both eyes, in fact. 

Green Heron, Gilpin Point, Abaco (Keith Salvesen)01

The hunting technique is deceptively simple. Note the long sharp stabbing beak. Note the large feet and claws for gripping securely Here’s how it is done. As a fish is sighted, so the heron leans forward, beak closer to the water, more streamlined to look at.Green Heron, Gilpin Point, Abaco (Keith Salvesen)02

As the prey unwittingly approaches the bird slowly tilts further forward unless its beak almost touches the water, the quicker to strike…Green Heron, Gilpin Point, Abaco (Keith Salvesen)03 Green Heron, Gilpin Point, Abaco (Keith Salvesen)04

The actual strike is so rapid that it is barely possible to see with the naked eye, let alone to photograph it clearly. For me and my little Pentax, anyway. But the end result is rarely in doubt, with a small fish struggling but securely held. It will be down the heron’s gullet in a matter of seconds.Green Heron, Gilpin Point, Abaco (Keith Salvesen)05

I left the heron as it settled slowly back into ‘scanning the water mode’ while I went to look at some Lesser Yellowlegs nearbyGreen Heron, Gilpin Point, Abaco (Keith Salvesen)06

I returned a few minutes later. Scanning was still in progress, and the bird started the gradual ‘leaning forward’ process as it sighted a fishGreen Heron, Gilpin Point, Abaco (Keith Salvesen)08

Get ready to spearfish…Green Heron, Gilpin Point, Abaco (Keith Salvesen)10

Epic success for the heron, epic fail for the photographer…Green Heron, Gilpin Point, Abaco (Keith Salvesen)09

“Ha ha Mr Human with your funny black clicky thing hanging round the thing that attaches your head to your body. I was too quick for you. Who hasn’t got the hang of shutter speed yet? Eh? I win the fish. I win the game…”Green Heron, Gilpin Point, Abaco (Keith Salvesen)11

ROUGH GILPIN CHECKLIST

Species we have found on and around the pond include Black-necked Stilts, Little Blue Heron, Great Blue Heron, Tri-colored Heron, Snowy Egret, Reddish Egret, Yellow-crowned Night Heron, Sora, hordes of White-cheeked Pintails, Northern Pintails, Lesser Yellowlegs, Belted Kingfisher, Turkey Vulture, Smooth-billed Ani, American Kestrel, Bahama Woodstar, Cuban Emerald, Mucovy Duck (pets!)  and – for the first time this year – Green heron. As a bonus, Gilpin has become a regular stop for flocks of Abaco Parrots. Other species found there include American Flamingo, Brown Pelican, DC Cormorants and Limpkin. I’ve no doubt there are shorebirds on the beach such as Wilson’s Plovers, various gulls to be identified, and passing tropicbirds & magnificent frigatebirds high over the water.

VOLUNTARY MUSICAL DIGRESSION

‘The Hunter’ is a well-known Albert King / Stax song from 1967 with elements reminiscent of many blues songs and lyrics before that. The best known versions are probably the one by Free (‘Tons of Sobs’ 1968), which is un-improvable and definitive; and the doff of the cap by Led Zeppelin towards the end of ‘How Many More Times’… However ‘Pacific Gas and Electric’ made a pretty good stab at the song, also in the late ’60s

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SHARP-EYED SHARP BILLED

A FACEFUL OF FISH

All photos RH; Music ‘borrowed’  from a CD into iTunes, converted to MP3 and ‘re-borrowed’ for present non-commercial purposes. And it did say “FREE” on it in large letters…

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CARIBBEAN ENDEMIC BIRD FESTIVAL: NASSAU BIRDERS VISIT ABACO


DSC00298_3

CARIBBEAN ENDEMIC BIRD FESTIVAL: NASSAU BIRDERS VISIT ABACO

THE CARIBBEAN ENDEMIC BIRD FESTIVAL (CEBF) is a Caribbean-wide festival that aims to heighten awareness for birds generally in the region. It is sponsored by the excellent BIRDS CARIBBEAN organisation – click the link to see what it is all about. Birds, obviously, but from the points of view both of promoting and of preserving the rich avian variety throughout the Caribbean.

As part of the CEBF celebrations this month, a birding group from New Providence came to Abaco to explore the birdlife. The expedition group included several well-known local bird experts, all the better for locating and identifying species and ensuring a comprehensive checklist could be compiled. Also in the group was photographer Linda Huber, whose photos you will undoubtedly have seen in Bahamas publications, including the recently published small guide BEAUTIFUL BAHAMA BIRDS (click to see my review and further details – highly recommended for any birder from novice up). Here are a few of Linda’s photos of some of the birds seen during the expedition, a gallery that shows the extraordinary diversity of species to found in a short time on Abaco.

Apologies to those who received a ‘false start’ draft of this post. It was lunchtime, I was hungry, I pressed ‘Save Draft’… or thought I had. Why is the ‘Publish’ button so close? Oh. Right. I see. It’s not its fault, it’s mine…

Western Spindalis Spindalis zena             Abaco Parrot Amazona leucocephala bahamensis                       DSC00210_2  DSC00216_2

Bahama Yellowthroat Geothlypis rostrata                   Bahama Mockingbird Mimus gundlachiiDSC00298_3 DSC00317_2

Bahama Warbler Setophaga flavescens                         Black-faced Grassquit Tiaris bicolorDSC00356_3 DSC00381_3

                                                        Yellow Warbler Dendroica petechia                                                                DSC00371_2 DSC00378_2

Bahama Swallow Tachycineta cyaneoviridis              Cuban Pewee Contopus caribaeus bahamensis  DSC00399_3 DSC00413_2

Olive-capped Warbler Dendroica pityophila            Pearly-eyed Thrasher Margarops fuscatusDSC00422_2 DSC00501_3

                              West Indian Woodpecker Melanerpes superciliaris                                             DSC00475_2  DSC00278_3

                                                      Canada Goose Branta canadensis                                                                             DSC00566 DSC00642_2

White-cheeked Pintails Anas bahamensis                   Caribbean Coot Fulica caribaea     DSC00612_2 DSC00627_3

Muscovy Duck Cairina moschata                                   European Starling Sturnus vulgaris        DSC00639_2  DSC00524_2

Mangrove Cuckoo Coccyzus minor                    La Sagra’s Flycatcher Myiarchus sagrae lucaysiensisDSC00675_2 DSC00694_2_2

Cuban Emerald Chlorostilbon ricordii                        Blue-gray Gnatcatcher Polioptila caerulea DSC00721_2 DSC09484_2

The gallery above includes a number of specialist birds and others of particular interest. In brief:

  • 3 of the 4 ENDEMIC SPECIES found on Abaco (omitting only the Bahama Woodstar)
  • The famous, incomparable and indeed unique ground-nesting ABACO PARROT
  • 4 ‘local’ subspecies of birds also found beyond the Bahamas
  • 1 of only 5 resident warblers, the Olive-capped (of 37 recorded for Abaco)
  • The most recent addition to the birds recorded for Abaco PEARLY-EYED THRASHER
  • The WEST-INDIAN WOODPECKER, now found only on Abaco and (rarely) San Salvador
  • 2 or 3 introduced or domestic species (if that Muscovy Duck was at Gilpin Point it’s a pet!)
  • The debatable ‘Caribbean Coot’, about which it has been written**  The American Coot is familiar to all, but controversy surrounds the Caribbean Coot with its all-white frontal shield. Some authorities say it is a separate species; others say it is a true subspecies of the American Coot; some claim it is simply a local variant. Bond (1947) treats them as distinct species. The image below shows the two species together. They coexist contentedly and are indifferent to the debate.

American & 'Caribbean' Coot (Tony Hepburn)

The group on a Logging Track in the Abaco National ParkDSC00349

The New Providence Birding Group Expedition to AbacoDSC00706_3

 Caribbean Endemic Bird Festival Flyer

CREDITS All photos Linda Huber (with many thanks for use permission) except the pair of coots (Tony Hepburn) and the singing Bahama Yellowthroat in the BNT Flyer (Bruce Hallett)

** Keith Salvesen, The Birds of Abaco p22

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“STRIKE THE POSE”: BLUE-GRAY GNATCATCHERS ON ABACO


Blue-Gray Gnatcatcher, Treasure Cay, Abaco (Becky Marvil)

“STRIKE THE POSE”: BLUE-GRAY GNATCATCHERS ON ABACO

I’ve featured these little birds before, including a few I took a couple of months back. For reasons to do with a current project I have been revisiting some of my archive folders of Abaco birds. Most are carefully and correctly labelled, which in most cases is easy – ‘Abaco Parrots’; ‘W Spindalis’; B/quits’ etc. Some have more fancy shortcut names that I’m just getting into – ‘PIPL’; ‘BAWA’; ‘WESA’ and so on. And some are crammed into generic folders like ‘Shorebirds Misc’, ‘Gulls Terns Whatever’ or ‘Warblers???’ pending further attention (if ever).

Blue-Gray Gnatcatcher, Treasure Cay, Abaco (Becky Marvil)Blue-Gray Gnatcatcher, Treasure Cay, Abaco (Becky Marvil)

The BGGs I have previously shown have all been photographed on South Abaco. Several of the photos here were taken in and around the Treasure Cay area by Becky Marvil, one of the photographic contributors to THE BIRDS OF ABACO. It’s good to remember that although South Abaco provides the best birding, there are other parts of the island, and some Cays such as Man-o-War, where the birding is also very good.

Blue-Gray Gnatcatcher, Treasure Cay, Abaco (Becky Marvil)Blue-gray Gnatcatcher, Treasure Cay Abaco (Becky Marvil)

BGGs are well-known for their irreziztbz little ways – coming to check you out if you pish, click or whistle softly in thick coppice; posing daintily for the camera; and maybe even preceding or following you down a track in a companionable way. They may be small, but they always a welcome sight and they make for a very attractive bird gallery.

Blue-gray Gnatcatcher, Abaco Bahamas (Tom Sheley) aBlue-gray Gnatcatcher preening, Abaco Bahamas (Tom Sheley) bBlue-gray Gnatcatcher, Abaco Bahamas (Tom Sheley) c

Blue-gray Gnatcatcher, Abaco (Charles Skinner)Blue-gray Gnatcatcher, Abaco (Charles Skinner)

Credits: Becky Marvil (1,2,3,4,5), Tom Sheley (6,7,8), Charlie Skinner (9,10), Bruce Hallett (11)Blue-gray Gnatcatcher, Abaco (Bruce Hallett)

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‘BONEFISH CHASE’: A SKIFF RIDE FROM CROSSING ROCKS


Shadows on the Flats, Crossing Rocks, Abaco

‘BONEFISH CHASE’: A SKIFF RIDE FROM CROSSING ROCKS

Does any ‘fun’ (toxic concept) ever happen around Rolling Harbour? All that detailed business about our little winged friends. All that earnest historic stuff with, like, maps and things. All those fish that are basically just… fish. Ditto the flowers. The prints of Whales (geddit?). But does Rolling Harbour ever truly come alive?

Well here’s a little brief entertainment in a skiff setting off from Crossing Rocks for a day of bonefishing, throwing some shapes along the twisty channel between the jetty and the flats beyond. Anyone who has enjoyed the sometimes exhilarating / sometimes painful (in choppy waves) skiff trips on Abaco to get out to the bonefish grounds will relate to this. You get 2 versions: high definition, with some pretentious music to match the mood. According to me. 

Here’s a smaller version with a more familiar theme (also to be found on the Sidebar of this blog) for those who are allergic to pretentious music… it’s more ‘fun’, in fact.

Dreadits: all stuff, RH; music by Preston Reed and Commander Bond

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HOLE-IN-THE-WALL, ABACO: A UNIQUE PERSPECTIVE (1) THE PAST


Map of Abaco (part) - van Keulen 1728

HOLE-IN-THE-WALL, ABACO: A UNIQUE PERSPECTIVE (1) THE PAST

I’ve posted several times about the desolate, unpopulated area on the southern tip of Abaco known as Hole-in-the-Wall. It’s a place of history and mystery – indeed arguably the most historically, geographically and nautically important location on the entire island. The material in this post has to an extent been combined from earlier posts a couple of years back, since when a great many more people have been showing an interest in the wildlife and history of Abaco (thanks!) and may be new to the history and significance of HITW…

Although Abaco is identifiably – though not geographically reliably – mapped from as early as 1550 (only 58 years post-Columbus), the earliest map of Abaco showing any actual named place is the van Keulen map of 1728 in the header picture. The importance of HITW (‘Hole Rok’ marked on the east side) is clear. Indeed it is the only settlement shown. Thereafter, the place is mapped variously as Hole-in-the-Rock, Trou dans la Roche and Hole-in-the-Wall, before finally settling on the last name. HITW was clearly a significant nautical landmark from at least the c16. You can read more on this topic at HITW – A SHORT HISTORY IN MAPS

Incidentally, note the early spellings including of the word ‘Cay’ as ‘Kee’ in the bottom right corner – doubtless an explanation for the pronunciation today, when one might otherwise rhyme the word with ‘Bay’.

hole-in-the-wall-print-1803

The print above, dated 1803, is the earliest depiction of HITW that I have traced. For now, note the familiar ‘Hole’ between the two ships; and the outcrop to the right showing that another, larger ‘Hole’ had, by the early c19, collapsed. Remains of the outcrop, now badly eroded, can still be seen. Read more about pictures of HITW in SHIPS, MAPS & HITW , or in HOLE TO GAP, including a more recent print by Winslow Homer (below) which I contend is the proof that his famous painting ‘Glass Window’ in the Brooklyn Museum is of Abaco and not (as claimed elsewhere) the famous Glass Window on Eleuthera. Of which more another time…

Hole-in-the-Wall Picture

The sad fact is that although the name lives on and probably always will, in October 2012 Hurricane Sandy smashed the Hole in the Wall to smithereens, leaving what one can best describe as GAP IN THE WALL.

Here is the position of the Hole, shown before Sandy struck. Note the outcrop at the tip (bottom right corner), as seen in the old print above hole-in-the-wall-rock-abaco-location

One of very few photos taken from the sea that I have come across. There’ll be more, and much closer, in the next post Hole-in-the-Wall distance shot

The view from the lighthouse down to the ‘Land’s End’ promontory (RH)Hole-in-the-Wall Lighthouse Abaco (Keith Salvesen)

An aerial view of ‘Land’s End’ (with thanks to marinas.com for free use permission)Hole-in-the-Wall Lighthouse, Abaco annotated

The Hole, very shortly before Hurricane Sandy blasted away the bridge – the perfect place for a picnic…Hole-in-the-Wall Abaco ©Jessica Arrington

Or, as the storm approaches, maybe not…. Jack Bowers took this wonderful (and dangerous to acquire) sea-level shot – possibly the last photo ever of the intact arch427937_4820129308023_1041770732_n

Photos of the ‘Ex-Hole Now Gap’ taken within a very few days of the storm. Note the pale fresh stone HOLE-IN-THE-WALL ABACO post Sandy 1 Luc LavalleeHOLE-IN-THE-WALL ABACO post Sandy 2 Luc LavalleeHOLE-IN-THE-WALL ABACO post Sandy 3 Tara Lavallee

This post covers the history of Hole-in-the-Wall over the last 400 years or so, with links to earlier posts from a couple of years back. Then there’s a bit of a gap, I’m afraid, back to the LATE PLEISTOCENE EPOCH roughly 125,000 years ago when the landmass was formed… 

PART 2 will show how the ‘Hole’, the promontory and the lighthouse now look in 2015 from the ocean. During a recent highly successful whale-watching expedition with Charlotte & Diane from the BMMRO, we took the RHIB close to the point and took a seaward look at it from both sides, the first time I had done so. A few days before we’d been to Hole-in-the-Wall for birdwatching purposes by conventional means – the thirty mile round trip by truck along the track from the ‘Y’ of the Highway (NB no hire cars allowed). You can read an early post about this perilous adventure in TO THE LIGHTHOUSE…

HOLE-IN-THE-WALL LIGHTHOUSE: THE LANTERN ROOMHole-in-the-Wall, Abaco - Lantern Room (Keith Salvesen)

Credits: S. Wright, RH, marinas.com, Jessica Arrington, Jack Bowers, Luc Lavallee, Tara Lavallee, open source images

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YELLOW WARBLERS ON ABACO


Yellow Warbler at sunrise. Abaco Bahamas.6.13.Tom Sheley copy

YELLOW WARBLERS ON ABACO

Of the 37 WARBLER SPECIES recorded for Abaco, 25 are mainly or partly yellow. So talk of a ‘yellow warbler’ can as easily be a general description matching any one of a number of species, as a particular description of the one and only Yellow Warbler Setophaga petechia. This small sunny bird is a common permanent resident on Abaco, one of only 5 resident warblers. The other 4 don’t help the situation much, by dint of all being yellow to a greater or lesser extent. 

Yellow Warbler male3.Abaco Bahamas.6.13.Tom SheleyDendroica-petechia-001 (MDF)

My general rule of thumb is that the Yellow Warbler out-yellows all the rest (though the winter-resident PROTHONOTARY gives it a run for its money), with the adult males bright and cheerful all over and the females rather less glaring but still demonstrably yellow from beak to tail tip.

Yellow Warbler (f) Bruce Hallett

Q. ARE THEY ALWAYS EASY TO SEE? A. SEE BELOW, GO FIGUREYellow Warbler male.Cherokee Sound.Abaco Bahamas.Tom Sheley

Q. CAN YOU SHOW MORE PRETTY FEMALES? A. BY ALL MEANSYEWA_Bahamas-Great Abaco_5204_Yellow Warbler_Gerlinde Taurer copyYEWA 2_Bahamas-Great Abaco_5165_Yellow Warbler_Gerlinde Taurer copy

Q. SO YEWAs ARE COMMON? HAVE YOU EVER PHOTOGRAPHED ONE? A. ONLY HOPELESSLYYellow Warbler, Abaco (Keith Salvesen)

Q. DO THEY HAVE AN ATTITUDE PROBLEM? A. ONLY VERY RARELYYellow Warbler male2.Abaco Bahamas.6.13.Tom Sheley

A THREAT TO THE SPECIES Shiny Cowbirds, luckily still rare on Abaco, favour yellow warbler nests for their parasitic egg-laying, with sadly predictable results. These cowbirds properly belong in South America, but they are gradually spreading north through the Caribbean, and have now reached Florida. I’m beginning to take a (purely personal) hard line on invasive species where they diminish and destroy indigenous species: eradication. The feral peacocks of Casuarina, now several generations down the line from their original introduction as exotic pets, do no harm and are undeniably decorative. But would you prefer the pretty yellow warbler and its fledglings in your garden, or the shiny cowbird that displaced them?

240px-Dendroica_petechia_map.svg

Credits: Tom Sheley (1,2,5,9); MDF (3)Bruce Hallett (4); Gerlinde Taurer (6,7); RH (8)

And finally… the song that out-yellows all other songs with the word ‘yellow’ in the title – it is the only song called just that one word! 

    Yellow Warbler at sunrise.Abaco Bahamas.6.13.Tom Sheley copy copy                Yellow Warbler at sunrise.Abaco Bahamas.6.13.Tom Sheley copy copy                Yellow Warbler at sunrise.Abaco Bahamas.6.13.Tom Sheley copy copy                Yellow Warbler at sunrise.Abaco Bahamas.6.13.Tom Sheley copy copy                Yellow Warbler at sunrise.Abaco Bahamas.6.13.Tom Sheley copy copy

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ENDANGERED SPECIES DAY: ONE LITTLE REASON WHY IT MATTERS…


Piping Plover Chick ©Melissa Groo PhotographyI had been going to post a selection of bird photos to mark Endangered Species Day today. I’d begun to plan the details – the birds to use, the captions for each and so on. Then I saw one photograph that is so charming and yet so poignant that I realised that adding further images would be superfluous. This tiny piping plover chick is a potent symbol of the vulnerability of all threatened species.

This shot was taken by award-winning and renowned wildlife photographer Melissa Groo. If you want to see the most wonderful and varied wildlife photography that you could ever imagine, please go to Melissa’s website and prepare to be amazed. You will find it HERE

I have posted several times about the endangered piping plovers, many of which overwinter in the northern Bahamas generally, Abaco particularly, and the Delphi Club beach specifically. There are believed to be fewer than 8000 individual birds on earth, and their little world of the shoreline is threatened at both ends of their migration, as well as at their rest ‘stopovers’ en route in either direction. Conservation programs at each end of the range are proving effective at preserving the plovers’ habitat, and the population does seem to have increased slightly. Each chick protected represents a small triumph for conservation.

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Photo credit: Melissa Groo, with thanks for the inspiration! “Less is more…”; Conserve Wildlife Foundation of NJ for their partnership conservation work with PIPL on Abaco and in the Bahamas; the originator – ?Great Lakes Piping Plover Project –  of the neat small logo…

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BAHAMAS WHALES & DOLPHINS IN ABACO & ANDROS WATERS


Melon-headed Whale breaching - BMMRO copy

Melon-headed Whale breaching – BMMRO

BAHAMAS WHALES & DOLPHINS IN ABACO & ANDROS WATERS

The Bahamas Marine Mammal Research Organisation (BMMRO)  has its HQ at Sandy Point, Abaco. We recently went out in their research boat, a RHIB, to spend an unforgettable day with Blainville’s beaked whales and bottlenose dolphins. I posted some of the dolphins HERE; and a two-part beaked whale post is a work in progress.

Male Blainville’s beaked whale with its extraordinary barnacle-encrusted teeth that protrude upwards from its lower jaw. The prominent beak is plainly visible. Sighted off the south-west point of Abaco during our second encounter with a group of these whales – the only male we saw that dayBlainville's Beaked Whale KS 1

Abaco waters are ideal for marine mammals, especially off the southern shores where the walls of the Great Bahama Canyon drop vertiginously down from the shallow coastal waters to depths of up to 3 miles below. This is one of the deepest ocean canyons in the world.  The area provides a rich source of food and nutrients for the whales and dolphins and many different species are regularly sighted there, from huge sperm whales to small pilot whales (including plenty of species I had never heard of before). 

Great Bahama Canyon Map edit

As the name suggests, the BMMRO’s remit extends far beyond Abaco. The researchers often spend time exploring and recording cetaceans in other Bahamian waters. For the last few weeks the team have been off Andros and have encountered quite a few target species. I have included a selection below taken within the last month to illustrate the importance of the area for a remarkable assortment of wonderful whales and dolphins.

BLAINVILLE’S BEAKED WHALEBlainville's Beaked Whale copy

DWARF SPERM WHALESDwarf Sperm Whales - BMMRO copy

PANTROPICAL SPOTTED DOLPHINSPantropical Spotted Dolphin - BMMRO Pantropical Spotted Dolphin leap - BMMRO copy

On board the research vessel, every sighting is recorded in detail – where possible by species, numbers, ages, sexes, and individual identifying characteristics. Thus ‘SW34’ may have a damaged fluke, whereas ‘RD49’ may have a long scar on its back. 

PILOT WHALESPilot Whale - BMMROPilot Whales - BMMRO copyPilot Whales 2 - BMMRO

The research boat is equipped with sound devices which, when the microphone is immersed, are capable of picking up whale or dolphin sounds from a considerable distance. It’s astounding to be able to listen in ‘live’ to the wide assortment of clicks and whistles produced as the creatures communicate with each other. The recorded sound patterns are studied and can often be matched to enable an individual animal to be identified. 

MELON-HEADED WHALESMelon-headed Whales - BMMRO Melon-headed Whale - BMMRO

RISSO’S DOLPHINRisso's Dolphin - BMMRO copy

Other work, including photography, is done underwater. Perhaps the most intriguing aspect is the collection of poop specimens, from which a great deal can be ascertained about the diet and health of an individual animal. I wrote about this task and the methods used a while ago inFAMILIAR FECES‘.

I’ll be writing more about whales soon. Meanwhile, here’s a short BMMRO video of a large group of melon-headed males. At the start, you can clearly hear communication sounds between them.

Credits: Charlotte & Diane of the BMMRO for taking us out with them and for all the photos except the male Blainville’s beaked whale (mine, for once!)

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BRITTLE STARS: PRIMITIVE YET INCREDIBLY COMPLEX STARFISH


Brittle Star around a Tube Sponge ©Melinda Riger @ GB Scuba

BRITTLE STARS: PRIMITIVE YET INCREDIBLY COMPLEX STARFISH

BRITTLE STARS are closely related to starfish, and in particular to Basket Stars. They are commonly known as “serpent stars”, having 5 long, thin arms that may grow as long as 2 feet long. There are lots of different types of brittle star – at least 2000 – and they are found in every ocean on earth from the poles to the tropics. In Bahamian waters they a commonly found living on reefs.

Although these creatures look primitive, their structure, nervous systems, respiratory systems, digestive systems, sex lives and transportation methods are incredibly complex. Take it from me – I’ve just read about it all. So I’ve decided to pick a few aspects of these creatures to highlight rather than discuss the minutiae of their ossicles (tiny bones), madroporites (a sort of water filter / pressure balancer) and viscera.

You are most likely to see Brittle Stars clinging to coral or spongesSponge & Brittle Star ©Melinda Riger @GB Scuba

A DOZEN BRITTLE STAR FACTS TO PLAY WITH

  • The star has no eyes and no sense organs as we know them, but can detect light chemically; and (why would they need this?) sense smell through their ‘feet’… [Not a superpower I would prize, but still]
  • The mouth is on the underside of the central disc (‘body’) of 5 segments, each with a toothed jaw
  • The mouth is used both for ingestion and, putting it delicately, egestion. [Nor that superpower]
  • Stars eat tiny organisms suspended in the water or mini-worms, gathering them with their arms
  • If I have understood this, they breathe through their armpits, and can excrete from here also
  • The arms fit the main part with ball and socket joints, and are flexible in all directions
  • The genitals seem to be located in or between the armpits (lucky we are not descended from stars)
  • Stars readily regenerate lost arms until they lose the 5th – then they are in real trouble
  • This enables them to shed an arm in a predator attack, like a lizard its tail
  • Trials indicate that a jettisoned arm cannot regenerate from itself
  • They use only 4 arms to move along, with the fifth ‘steering’ out in front or trailing behind
  • Brittle Stars are inedible but non-toxic

Brittle Star on Green Rope Sponge ©Melinda Riger @ GB Scuba

Often, brittle stars will cling on inside a spongeBrittle Stars in sponge ©Melinda Riger @ GB Scuba

I quite liked this infographic from a source new to me, ‘Weird ‘n’ Wild Creatures Wikia’Brittle_Stars_front

Here is a great video from Neptune Canada of a brittle star fight on the ocean floor over the remains of a shrimp. If you watch the ones joining the fight, you will clearly see the locomotion method described above, with one limb pathfinding and the other four ‘walking’.

I’m not renowned for extreme sensitivity, so I feel no shame in showing mating brittle stars, courtesy of Channel Banks. It’s not exactly Lady Chatterley and Mellors, but the entwined arms are rather romantic, no?

Credits: all wonderful photos by Melinda Riger of Grand Bahama Scuba; BS infographic and viddys as credited

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PIONEER NATURALISTS & ABACO BIRDS: POTTED BIOGRAPHIES


Wilson's Plover, Abaco (Craig Nash)

Wilson’s Plover, Abaco (Craig Nash)

PIONEER NATURALISTS & ABACO BIRDS: POTTED BIOGRAPHIES

Who were all the people – all men, I’m afraid – who are immortalised in the names of birds they first discovered or recorded or collected specimens of or wrote about? In various previous birds posts I have given brief bios of the naturalist for whom the particular species under consideration is named. I’ve decided to bring all those who specifically relate to Abaco together in one place. There is not (as far as I know) a collective term for ornithologists, so may I introduce a “Scope” or “Twitch” of them…

ALEXANDER WILSON 1766 – 1813

Mr WilsonWilson’s phalarope, plover, snipe, storm-petrel, warbler

Alexander Wilson was a scottish poet and writer. He specialised in ballads, pastoral pieces, and satirical commentary on the conditions of weavers in the mills. The latter got him into trouble when he overstepped the mark by making a vicious written attack on one mill owner. He was arrested, convicted and sentenced to burn the work in public (fair enough, perhaps) and imprisoned (somewhat harsh). After his release, he sensibly emigrated to America in 1794.

Alexander Wilson: The Scot Who Founded American Ornithology

Wilson became a teacher in Pennsylvania, and develpoped his interests in ornithology and painting. His ambitious plan was to publish a collection of illustrations of all the birds of North America. He travelled widely, collecting, painting, and securing subscriptions to fund a nine-volume American Ornithology (1808–1814). Of the 268 species of birds illustrated, 26 had never previously been described. Wilson died during the preparation of the ninth volume, which was completed and published by George Ord. Wilson predated John James Audubon (though not by many years) and  is generally acknowledged to be the founder of American ornithol0gy.

For examples of Wilson’s American Birds, check out the excellent Virginia University records HERE 

Wilson's Phalarope (Craig Nash)

Wilson’s Phalarope (Craig Nash)

CHARLES LUCIEN BONAPARTE 1803 – 1853

Bonaparte, Charles Lucien (1803-1857)Bonaparte’s gull, Zenaida dove

Charles Lucien Bonaparte, 2nd Prince of Canino and Musignano was a French biologist and ornithologist. He was nephew of the Emperor Napoleon. He married his cousin Zenaïde, by whom he had twelve children. They moved from Italy to Philadelphia, by which time Bonaparte had already developed a keen interest in ornithology. He collected specimens of a new storm-petrel, later named after the Scottish ornithologist Alexander Wilson (see above).

Bonaparte studied the ornithology of the United States, and updated Wilson’s American Ornithology. His revised edition was published between 1825 and 1833. He was a keen supporter of a (then unknown) ornithologist John James Audubon. Rather sweetly, he created the genus Zenaida, after his wife, applying it to the White-winged Dove Zenaida asiatica,  Zenaida Dove Zenaida aurita and Mourning Dove Zenaida macroura. He himself was later honoured in the name ‘Bonaparte’s Gull’.

Bonaparte's Gull, Abaco (Bruce Hallett)

Bonaparte’s Gull, Abaco (Bruce Hallett)

RAMON LA SAGRA (1798 -1871)

Mr La Sagra La Sagra’s Flycatcher

Ramón Dionisio José de la Sagra y Peris was a multi-talented man, being a Spanish botanist and also a writer, economist, sociologist, politician, anarchist, and founder of the world’s first anarchist journal El Porvenir (“The Future”). He lived in Cuba and became director of Havana’s Botanical Garden; his name lives on arguably more significantly in ornithological than in anarchist circles (actually, an ‘anarchist circle’ must surely be a contradiction in terms…)

La Sagra's Flycatcher, Abaco (Keith Salvesen)

La Sagra’s Flycatcher, Abaco (Keith Salvesen)

A Cuban stamp commemorates the death of Juan Gundlach, the nauralist who chose La Sagra’s name to bestow on the flycatcher, and who himself is honoured in the name of the Bahama Mockingbird Mimus gundlachii Cuba Stamp La Sagra's Flycatcher

WILLIAM JOHN SWAINSON (1789 – 1855)

Mr SwainsonFor Abaco: Swainson’s Hawk, Thrush & Warbler

Swainson was an English ornithologist, entomologist, conchologist, natural historian, and a gifted illustrator of the natural world. He was a pioneer of the new lithographic technology, which enabled quicker reproduction of his work than engraving. Swainson lent his name to a number of avian species, three of which may be found on Abaco – the Swainson’s Hawk, Thrush and Warbler. The hawk is a rare visitor; the thrush is a transient, passing through the Bahamas during migration; and the warbler is a hard-to-find winter resident. Below is the only known Swainson’s Hawk to be photographed on Abaco.

Swainson's Hawk, Abaco (Bruce Hallett)

Swainson’s Hawk, Abaco (Bruce Hallett)

JOHN ISIAH NORTHROP (1861 – 91)

640px-Picture_of_John_Isaiah_NorthropBahama Oriole (Icterus northropi)

John Isiah Northrop, for whom the endemic BAHAMA ORIOLE Icterus northropi is named, entailed a bit more research. The link above will take you to my post about this very beautiful species that is sadly on the brink of extinction. Until recently it was found only on Abaco and Andros, but is now extirpated from Abaco and exists only in certain enclaves on Andros.

Bahamas Oriole, Andros (Binkie Van Es)

Bahamas Oriole, Andros (Binkie Van Es)

I can do no better than regurgitate the info provided by the University of Glasgow Library Research Annexe in relation to a fine  illustration from A Naturalist in the Bahamas (1910), reprinted in The Auk journal (below) at a time when Icterus northropi was still a mere subspecies:

The yellow and black Bahama Oriole (Icterus Northropi) is a bird species unique to the Bahamas. The bird was named for American ornithologist and zoologist, John Isiah Northrop (1861–91); the illustration comes from an account of the trip Northrop and his botanist wife, Alice, took to the Bahamas in 1889 which was published in his memory: A Naturalist in the Bahamas: John I. Northrop, October 12 1861-June 25, 1891; a memorial volume (Columbia University Press, 1910). It was edited and introduced by Henry Fairfield Osborn, professor of zoology at Columbia University where Northrop worked as a tutor and was killed in a laboratory explosion shortly (9 days) before the birth of his son John Howard Northrop (who became a Nobel prize-winning chemist)”.Icterus Northropi illustrated in A Naturalist in the Bahamas (plate 1)

 

JARED POTTER KIRTLAND 1793 –1877

260px-Jared_Potter_Kirtland_1793-1877Kirtland’s Warbler (Setophaga kirtlandii)

Jared Potter Kirtland was a naturalist, malacologist and politician, most active in Ohio where he served as a probate judge, and in the Ohio House of Representatives. He was also a physician and co-founder of a University Medical School. Kirtland became one of America’s leading naturalists, with a particular interest in horticulture and sea shells. He published numerous natural history articles, and was a founder and president of the Kirtland Society of Natural History and the Cleveland Academy of Natural Science.

Somewhere in amongst all this, he discovered or at least studied the warbler that was named after him. This rare bird is found in small numbers only in certain areas of Michigan; and overwinters in the Bahamas including on Abaco. They a very hard to find, and harder still to photograph. This year we made an expedition into remote backcountry and found 4, more of which another time…

Kirtland's Warbler, Abaco (Woody Bracey)

Kirtland’s Warbler, Abaco (Woody Bracey)

JOHN JAMES AUDUBON (1785 – 1851)

John James Audubon never went to Abaco. The nearest he got was probably in 1820, when he made a field trip to the southern states, including Florida; or in the 1830s when he made at least one trip to Key West. One technique that set him apart from contemporaries was his method of producing naturalistic (as opposed to ‘stuffed bird’) drawings. It involved killing birds using very fine shot, and then using wires to pose them naturally, according to his field sketches. This contrasted with the usual technique of using a stuffed specimen as a model.

Although no Abaco birds are specifically named for Audubon, it is almost impossible to dip a toe into ornithological history without immediately stubbing it on Audubon’s name. Hence his inclusion in this piece, bringing it to a conclusion.

Audubon’s master-work was his renowned Birds of America, arguably the most famous bird tome ever. There are about 120 sets of the original book still in existence. They were incredibly expensive to produce in contemporary terms; and in modern times a set sold for $11.5 million at Sotheby’s London in 2010, setting the unbeaten record for the world’s most expensive book sale. Recently there was great excitement over the sale of another set at Christie’s New York, but the sale price was far lower, a mere $7,922,500… 

Audubon Birds of America.jpg

Credits: Bird pictures as shown; Encyclopaedia of Cleveland History, University of Glasgow Library, The Auk, Audubon Society, Wiki, Magpie pickings

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PLOVER LOVER? MEET SOME CUTE CHICKS ON ABACO


Wilson's Plover chick.Delphi Club.Abaco Bahamas.Tom Sheley

PLOVER LOVER? MEET SOME CUTE CHICKS ON ABACO

(*Serious Voice*) “The Wilson’s Plover is the only permanent resident plover found on Abaco, the other species being the winter resident Black-bellied Plover, Semipalmated Plover, Piping Plover and Killdeer; and the rare transient American Golden Plover. The nidification of the Wilson’s Plover is by common consent among naturalists the most…”

But let’s not get carried away with all that pompous ornithological stuff. There are baby plovers to be considered. Each one exudz adorbz and absorbz admirz. Most of the photos below were taken on the beach at Delphi. Ready? Let’s meet some chicks… But you can’t have them without first having the eggs, can you?

Wilson's Plover nest, Delphi Beach, Abaco (Clare Latimer)Wilson's Plover chick.Delphi Club.Abaco Bahamas.Tom Sheley

The Wilson’s Plovers at Delphi generally nest at the north end of the beach, up towards the reef. It is secluded, has good sight-lines and is bordered by pines. On the approach of a predator or human (in this case, me), the tiny chicks are sent scuttling to safety at the back of the beach while the parents prepare to tough it out if need be…Wilson's Plover Chicks Delphi Beach, Abaco (Keith Salvesen)

“You ain’t seen me, right?”Wilson's Plover Chick, Delphi Beach, Abaco (Keith Salvesen)

“I know we are caught in the open, but if we stand really still, you can’t see us, right?”Wilson's Plover Chicks x 2, Delphi, Abaco (Keith Salvesen)

One of the most fascinating aspects of bird behaviour to watch is the so-called ‘broken-wing’ display put on by plover parent(s) to distract a predator away from a nest or scrape, and the eggs or chicks in it. Kildeer and black-necked stilts are among other species that do this performance. It goes like something like this: 

“Oh! OW! I am helpless. Please don’t attack me, Apex Predator, for I am but a vulnerable plover…”Wilson's Plover, Delphi, Abaco -  broken wing display (Clare Latimer)

“But kindly follow me as I flap pathetically (moving away from my nest). I can’t fly, you know…”Wilson's Plover, Delphi, Abaco -  broken wing display (Clare Latimer)

Camouflage also plays a part in the protection of these little creatures. This chick is on the rocks at the north end of the Delphi beach, the bit where you begin to wish you’d worn shoes because the rock is so sharp… From 10 feet away, you might well miss seeing the chick completely.Wilson's Plover chick. Delphi.Abaco Bahamas.6.13.Tom Sheley

This is one of my favourite shots, also at Delphi, taken by Sandy WalkerWilson's Plover & Chick, Delphi, Abaco (Sandy Walker)

Quite a while ago, I wrote about a Wilson’s Plover family that had made their scrape at Nettie’s Point, the place where the bonefishing skiffs are launched. They chose their homemaking site right where the trucks and trailers turn. Big mistake you might think. But the kind guides built a small stockade of branches round the scrape so that it could clearly be seen and avoided. After that, Mrs WP settled down happily and Mr WP stood guard whenever anyone was around…

The protective stockade in place. Mrs Plover in place. All’s well with the worldNettie's Point, Abaco - Proected Wison's Plover Nest (Keith Salvesen)Nettie's Point, Abaco - Mrs Wilson's Plover on the nest (Keith Salvesen)

Soon after, two chicks hatched, were reared by both parents, and in due course fledged safelyWilson's Plover.Abaco Bahamas.Tom SheleyWilson's Plover + chicks 2.Abaco Bahamas.6.13.Tom Sheley

Photo Credits: Clare Latimer (2, 7, 8); Tom Sheley (1, 3, 9, 13, 14); Sandy Walker (10); RH (the rest)