THE ‘THRUSH’ THAT ISN’T: NORTHERN WATERTHRUSH ON ABACO


Northern Waterthrush.Bahama Palm Shores.Abaco.3.Tom Sheley

THE ‘THRUSH’ THAT ISN’T: NORTHERN WATERTHRUSH ON ABACO

The pretty thrush-like warbler Northern Waterthrush Parkesia noveboracensis is a common winter resident on Abaco. Despite the name it’s not a real thrush, but it is larger than most of the compact winter warblers that heed the the migratory instinct that “It’s Better in the Bahamas” and make Abaco their overwintering habitat.

Northern Waterthrush.Bahama Palm Shores.Abaco.1.Tom Sheley

HOW CAN YOU TELL SIMILAR PLUMAGED THRUSHES FROM THESE GUYS?

The simplest rule of thumb is that true thrushes have spotted or speckled chests; whereas waterthrushes have streaked chests. That, and the fact that similar thrush species are generally larger. A number of true thrushes are recorded for Abaco, many quite similar to the waterthrush; but the speckled vs spotted distinction should be your guide. If a sighting is momentary or in bad light, it’s anyone’s guess…

Northern Waterthrush, Abaco (Becky Marvil)

northern_waterthrush_rangemap(1)

APART FROM THRUSHES, ANY OTHER BIRDS I MIGHT CONFUSE IT WITH?

There’s another far less commonly found waterthrush that also overwinters on Abaco – the closely-related Louisiana waterthrush Parkesia motacilla. I have no Abaco photos of one – it really is quite rare – so I’ve had to borrow an open source one. The Cornell Lab explains the differences between the two waterthrushes thus: “Northern usually has stripes on throat, a slightly smaller bill, a thinner and off-white or cream eyestripe that does not extend as far onto the nape, less pink legs, and a more yellowish wash on the underparts”. Maybe one can generalise that the northern is overall a yellower bird, and its legs are more brown than pink.

Lousiana waterthrush – rarer on Abaco than the northern but a potential source of confusionLouisiana_Waterthrush_(Parkesia_motacilla) Magnus Manske : Wiki

WHAT’S THAT POSH TAXONOMIC NAME ALL ABOUT, THEN?

The Mr Parkes in question was Kenneth Carroll Parkes (1922 – 2007), an American ornithologist and Chief Curator at the Carnegie Museum of Natural History, Pittsburgh. The noveboracencis part simply means ‘from New York’ in Latin (novum – new; Eboracum – York); and the -ensis is a common suffix meaning ‘from’. Mr Parkes’s bird from New York.

Kenneth Carrol ParkesMr Parkes

Northern Waterthrush, Abaco (Bruce Hallett)
Both species have similar habits. For example, on the ground, they tend to walk rather than hop, ‘bobbing’ their butts (technical term) as they go. They forage on the ground for insects, snails and small mollusks etc.
  
Northern Waterthrush, Abaco 1 (Gerlinde Taurer)
I’m not a huge fan of attempts at phonetic renditions of bird calls – the ‘Did you have a nice day today dear?’ and the ‘I’d like a very big Kalik please’ and so on. But for what it is worth, the song of the northern waterthrush has been interpreted as “a loud swee swee chit chit weedleoo”.  This is what is sounds like in real life. Go figure.
Northern Waterthrush, Abaco 2 (Gerlinde Taurer).jpg

Credits: Tom Sheley (1, 2, 8); Becky Marvil (3); Magnus Manske (4); Bruce Hallett (5); Gerlinde Taurer (6, 7); Richard E Webster at Xeno-Canto for the song clip

Northern Waterthrush.Bahama Palm Shores.Abaco.2.Tom Sheley

“CALLING ELVIS” (THE SQUIRRELFISH, NOT THE MAN)


Squirrelfish Elvis ©Melinda Riger @ G B Scuba

“CALLING ELVIS” (THE SQUIRRELFISH, NOT THE MAN)

How proud The King would be to know that his name lives on in the form of an attractive though sadly unmusical Bahamian squirrelfish. This little guy is at least 5 years old. What is more, he has lived at the same address all that time, defending it against usurpers and protecting himself from predators in its safe depths. Here is the loveable little Elvis photographed at home between 2012 and 2016 (header image), the master of his own underwater Graceland…

Squirrelfish (%22Elvis%22) ©Melinda Riger GB ScubaElvis the Squirrelfish ©Melinda Riger GB Scuba Squirrelfish ©Melinda Riger @ GB Scuba Squirrelfish ©Melinda Riger @ G B Scuba

The reason that Elvis has such large eyes is that these fish are mostly nocturnal, and (apart from when Melinda is out with her camera), he and his friends spend most of the day either at home, or in crevices, small rock caves, or under ledges. However, here are a couple of shots of Elvis out and about, enjoying some quality time among the corals.

Squirrelfish (Elvis) ©Melinda Riger @ Grand Bahama ScubaSquirrel Fish ©Melinda Riger @ G B Scuba

ROLLING HARBOUR MUSICAL DIGRESSION

I so wanted to add a specific Elvis catalogue ‘Musical Digression’, but try as I might, there is no title in The King’s discography that has any potential for finny nuance or piscine pun value. However, here’s a track from the now tragically unhip Dire Straits on their follow-up album to the phenomenal ‘Brothers-in-Arms’, the much under-rated ‘On Every Street’. I give you… Calling Elvis, a song that cunningly contains as many titles of Presley hits as anyone could ever wish for.

All images: Melinda Riger at Grand Bahama Scuba; cartoon from a sequence on the excellent BCCR Defenses page – learn about camouflage and other fishy self-protection techniques

Nocturnal squirrelfish checks out a parrotfish’s sleeping arrangementscamoSquirrWparrot01

SMALL ABACO BIRDS TO MAKE THINGS BETTER


Blue-gray Gnatcatcher, Abaco 1 (Keith Salvesen)

SMALL ABACO BIRDS TO MAKE THINGS BETTER

Bad day. I know about random outage outrage and so on, but really… The router died, unmourned. Bought another. Wasted 2 hours trying to make it work. Turns out to be ‘defective’, which is to say broken. Or another B word. Bought another. Almost lost the will to live. I have the briefest window in which to check emails etc before it, too, checks out of the Mac Hotel. The ONLY SOLUTION (apart from Kalik in copious quantities, sadly not available where I am right now), is to look at some pretty birds taken in the gardens round the Delphi Club. Mmmmm. Feeling better now. Deep breaths… and… relax…

Bananaquit, Abaco 1 (Keith Salvesen)La Sagra flycatcher, Abaco 1 (RH)Cuban Emerald, Abaco (Keith Salvesen)Yellow-throated Warbler, Abaco (RH)

All pics by a rather stroppy RH

STOP PRESS Exactly 24 hours after excitedly unwrapping the (second) new router, after a convoluted and Kafkaesque series of phone calls to various techie centres, headily mixed with wine, beer, tears and tantrums, I combined some of the info from each and miraculously the recalcitrant beast sprang to life. For how long, though? Router advice given: $100 ph + exes

GULL-BILLED TERNS ON ABACO


Gull-billed Tern, Abaco (Alex Hughes) 01

GULL-BILLED TERNS ON ABACO

The gull-billed tern Gelochelidon nilotica had a name upgrade from Sterna nilotica some years ago, and was awarded the honour of its own genus. Let’s be clear at the outset: there’s no such thing as a tern-billed gull. Which slightly lessens the scope for species confusion. 

Gull-billed Tern, Abaco (Alex Hughes) 04

For those (me) who need a reminder about the whole family / genus / species taxonomic maze, here is a reminder. The example used is man. Or stickman, anyway.3958555126_4f85d9fa5b

Gull-billed Tern, Abaco (Alex Hughes) 05

There are 12 species of tern recorded for Abaco. Only one, the royal tern, is a permanent resident. There is one winter resident, the Forster’s tern and there a 6 summer resident terns of varying degrees of commonness. The other four are transient or vagrant, and probably not worth making a special trip to Abaco to find. The GBT is designated SB3, a summer breeding resident that is generally uncommon, though might be more common in particular areas.

TERN TABLE**Tern Species Abaco**I know! Too tempting…

gull-billed-tern

Gull-billed Tern, Abaco (Alex Hughes) 11

The bird gets its name from it short, thick gull-like bill. It’s quite large in tern terms, with a wingspan that may reach 3 foot. They lose their smart black caps in winter.

Gull-billed Tern, Abaco (Alex Hughes) 03

There are 6 species of GBT worldwide, and it is found in every continent. While many terns plunge-dive for fish, the GBT mostly feeds on insects in flight, and will also go after birds eggs and chicks. Small mammals and amphibians are also on the menu. The header image shows a GBT with a small crab. I imagine they must eat fish. Surely they do? But I have looked at dozens of images online to find one noshing on a fish, with no success. Does anyone have a ‘caught-in-the-act’ photo?

Gull-billed Tern, Abaco (Alex Hughes) 06Gull-billed Tern, Abaco (Alex Hughes) 02

All photos were taken by Alex Hughes, a contributor to “THE BIRDS OF ABACO”, when he spent some time on Abaco a while back in connection with the conservation of the Abaco Parrot and the preservation of the habitat integrity of their nesting area in the Abaco National Park

Gull-billed Tern, Abaco (Alex Hughes) 12

CHEROKEE LONG DOCK: ABACO LANDMARKS (1)


Cherokee Long Dock Aerial (David Rees)

CHEROKEE LONG DOCK: ABACO LANDMARKS (1)

Cherokee Long Dock has a significant claim to prominence on an Island that has, with its Cays, a good few docks to admire. The impressive 770 foot wooden dock is the longest wooden dock in the Commonwealth of the Bahamas, as its plaque proudly proclaims. The waters of Cherokee Sound are very shallow in places, and as the tides retreat, so sandbanks appear and the rest is barely covered by the sea. Hence the need arose for a very long dock to serve the very small community of Cherokee.

Cherokee Long Dock, Abaco, Bahamas (Larry Towning 1)Cherokee Long Dock, Abaco, Bahamas (Larry Towning 2)

Before the roads were built – in relatively recent memory – Cherokee was an isolated settlement. There was a shortcut connection by boat to a now-abandoned dock at the nearest community, Casuarina, across the Sound. However, non-tide-dependent access from the open sea was vital for supply boats and mail boats. Access to the sea was needed by the fishermen.

Cherokee Long Dock 4 (Amanda Diedrick) Cherokee Long Dock 2a (Amanda Diedrick) Cherokee Long Dock 1 (Amanda Diedrieck) jpg

The plaque documents the history of the dock, the damage inflicted by hurricanes, and the ‘countless hours of labour’ by local people- ‘men, women and children’ – to preserve the dock.Cherokee Long Dock: the plaque (Amanda Diedrick)

Royal terns and other seabirds use the dock to rest; and as a safe place from which to fishCherokee Long Dock (Velma Knowles)

Cherokee Long Dock 3 (Amanda Diedrieck)IMG_3013

Photo credits: David Rees and his wonderful drone (header); Larry Towning (2, 3); Amanda Diedrick (4, 5, 6, 7, 9); Velma Knowles (8); last image from a FB friend with thanks and many apologies – I’ve lost my note of who took it…  to be added if possible; short vid from Youtube.

BLUE CHROMIS: BAHAMAS REEF FISH (29)


Blue Chromis & Coral ©Melinda Riger @ GB Scuba

BLUE CHROMIS: BAHAMAS REEF FISH (29)

The little blue chromis Chromis cyanea will be instantly familiar to any snorkeler or scuba diver on the coral reefs of the Bahamas. These ever-present small fish – 6 inches long at most – are remarkable for their iridescent deep blue colour that flashes as they dart in and out of the coral and anemones of the reef.

Blue Chromis ©Melinda Riger @ G B Scuba

Although at first sight  this chromis species – one of many – looks blue all over, adults have a black dorsal stripe and black edging to their fins. They make colourful additions to aquariums, though to my mind they look far more attractive nosing about the reefs foraging for the zooplankton upon which they feed (see header image for details…)

Blue Chromis ©Melinda Riger @ GB Scuba

The blue chromis was the second fish species I encountered on my first ever reef dive, at Fowl Cay Marine Preserve with Kay Politano. The first fish was the endearingly inquisitive sergeant major with its smart black and yellow stripes which came right up to my googles to eyeball me. I loved that, even though my pitiful swimming technique meant that I had plenty of other distractions, not least remembering to breathe. Air, that is, rather than water.

Blue Chromis ©Melinda Riger @ GB Scuba

Chromis_cyanea_(blue_chromis)_(San_Salvador_Island,_Bahamas)

SO JUST HOW BIG ARE THESE FISH, COMPARED, SAY, TO A BLUE TANG?

Blue Tang with blue chromis in its wakeBlue Tang with Blue Chromis © Melinda Riger @GB Scuba copy

All photos Melinda Riger of Grand Bahama Scube, except the penultimate by James St John, taken in San Salvador

 

CRYSTAL CATHEDRALS: ABACO’S ASTOUNDING UNDERGROUND CAVES (6)


Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

CRYSTAL CATHEDRALS: ABACO’S ASTOUNDING UNDERGROUND CAVES (6)

The photos you see in this post were all taken by Hitoshi Miho during an amazing 3 days of diving with Brian Kakuk deep in the pine forests of South Abaco. It’s not the first time they have explored together the wonders that lie beneath those hundreds of acres of pines and scrub; I’m sure it won’t be the last.

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

The most spectacular cave systems are the adjacent Ralph’s and Dan’s Caves. These systems are believed to be linked, and I know Brian has been trying to find where they meet – a difficult and dangerous task carried out underwater many metres below the forest floor, and requiring sophisticated diving equipment and great expertise. 

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

The latest 3-day exploration involved 12 dives and nearly 30 hours underwater in Ralph’s Cave. Narrow passages open out into massive caverns filled with wonderful and complex crystal stalagtites and stalagmites formed over eons. I hope you enjoy examples from the ‘Rooms’ and passages, many with exotic names (Glass Factory, Ninja Passage, Erabor); some more prosaic (Fred’s Room). Then try to imagine that you are actually swimming there.

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

I shall be posting some more photos in due course showing some of the details of the cave formations – intricate patterns, delicate tracery, irridescent colouring, pencil-thin rods, ‘rock’ folds that look like the finest linen. As always I am immensely grateful to both intrepid divers for use permission. I won’t pretend that these thrilling caves are easily accessible – this is emphatically not an adventure to try unguided with a snorkel and flippers. But as you drive along the highway past miles of forest, it’s worth reflecting that far below you are some of the most magnificent cave systems anywhere in the world – right there, on your very own island… 

Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk) Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk) Abaco's Underground Caves (Hitoshi Miho, with Brian Kakuk)

As it happens, the Delphi Club is very close to these caves, which lie within the boundaries of the newly created ‘South Abaco Blue Holes Conservation Area (see map). This is one of several such conservation areas on Abaco and in the wider Bahamas that are designed to protect the natural resources of the islands from development and exploitation. The second map shows how tantalisingly close Dan’s and Ralph’s caves are… and suggests that further exploration may lead to the missing link.

abaco-caves-map-jpgAbaco Caves Ralph & Dan jpg

Finally, here is a 4-minute video of one small part of the exploration, which gives a very good idea of what is entailed in investigating the narrow passages and huge cathedral-like caverns. Welcome to the Fangon Forest…

Hitoshi Miho, Ralph's Cave, Abaco