‘ATALA FASCINATING': THE LIFECYCLE OF THE ATALA HAIRSTREAK ON ABACO


Atala Hairstreak Butterfly, Abaco 6

‘ATALA FASCINATING': THE LIFECYCLE OF THE ATALA  HAIRSTREAK ON ABACO

I have posted about several of the wonderful butterfly species the live on Abaco, but my favourite will always be the small but beautiful Atala Hairstreak Eumaeus atala. Its ‘look-at-me’ bright orange abdomen, black wings and the curious luminescent bright blue spots that even cover its legs and head are unmistakeable. These butterflies favour the coontie plant – especially for egg-laying – but they can be seen almost anywhere as far as I can see, though I have never seen one right by a beach. 

I’ve posted before about the lifecycle of the Atala, but I have never had a chance to show the complete post-egg process from caterpillar to triumphantly emergent butterfly actually recorded on Abaco until now. Thanks to Rhonda Pearce, her patience and her skill with a camera, the following sequence of photos shows in detail the various stages of metamorphosis.

THINGS TO LOOK OUT FOR

  • The little hairs on the caterpillars (larvae)
  • The dark gluey-looking shed skins
  • The delicate silky threads as the chrysalis forms
  • The butterfly emerges upside down, enabling it to uncrumple & spread its wings to dry

1964966_10152506740213720_6039769522835749460_n10516815_10152518719448720_8042135533496504376_n10460336_10152513042213720_1749266799385283727_n10329065_10152513052483720_1278639048660950997_n10636149_10152513103088720_95745605012112261_n10670036_10152537482408720_2714379949813709137_n

10173638_10152536424683720_8837746952198646203_n10703931_10152539084318720_4254043938657181472_n      10530805_10152539181538720_7306525148033947757_n1800474_10152539184718720_2160773318941097404_n1904051_10152539181463720_3683578272660806029_n10410511_10152536410758720_8834582183802288185_n

 

RELATED POSTS

ATALA HAIRSTREAK LIFECYCLE (you’ll find more info about the process here)

FLUTTER BY, BUTTERFLY

ABACO’S LOVELIEST BUTTERFLY

ABACO BUTTERFLY PAGE (other species found on Abaco)

Photo Credits: All Rhonda Pearce except the header of a full adult imago, RH

PS Sorry, I’ve been very po-faced and not mentioned Halloween. Everyone else is covered in blood, guts and gore, so I reckon the market is saturated. Also I get the wrong end of the ‘Trick or Treat’ stick. I carefully prepare 2 lots of choccy-based sweets. One is delicious. The other contains chilli. If the callers are nice, they get the Treat. If not, they get the Trick. That must be right, surely. I can listen to them hawking and barfing as they run off into the night…. [No children were hurt in the making of this story…]

PLOVER LOVER? PIPING PLOVERS ON ABACO (3)


Piping Plover (Danny Sauvageau) 4

PLOVER LOVER? PIPING PLOVERS ON ABACO (3)

So much to post about – what to choose? Well, the fall migration is still in full swing, with warblers hurtling across land and sea to Abaco in large numbers for their overwintering. Palm warblers are currently arriving. However I’m going to stick with shorebirds for now, and one of the rarer winter visitors, the Piping Plover. I have some more great photos from Danny Sauvageau in Florida, who tirelessly patrols the plover resting areas to record the banded ones so that their origin can be determined. This research assists with vital habitat conservation programs at each end of the migration. There are only 8000 of these little birds left in the world and without protection there’ll be none before you can say “oh dear, very pretty, they’re gone, what a pity…”

PIPING PLOVERS IN THE EARLY MORNING SUNPiping Plover (Danny Sauvageau) 6Piping Plover (Danny Sauvageau) 5Piping Plover (Danny Sauvageau) 3

RING BLING & FLAG TAGS

The postions, colours and numbering of the rings and tags on these plovers identify individual birds, the location of their summer breeding grounds and so on. Dispersal and migration patterns of each bird can be recorded and specific facts – age for example – can be monitored.Piping Plover (Danny Sauvageau) 2

Piping Plover (Danny Sauvageau) 7Piping Plover (Danny Sauvageau) 8Piping Plover (Danny Sauvageau) 9Piping Plover (Danny Sauvageau) 1

PIPL IN FLIGHT – AN AMAZING IMAGE

On the very day I was about to press the ‘publish’ button on this post, look what just flew in from Danny’s beach in Fl.! This is an outstanding photo of a PIPL in flight – you can even see its shadow on the sand. I have a few shots of these birds flying in groups over the sea but apart from a general impression of PIPL-ness, they could really be any small shorebirds travelling fast on the wing. This one is special. Piping Plover in flight (Fl., Danny Sauvageau)

ABACO PIPL NEWS

Piping plovers have already arrived on Abaco. Casuarina beach is a promising place to look. Rhonda Pearce sent me this nice photo taken on the point (see my map). This pretty bird looks as though it has a black tag. However Todd Pover of CONSERVE WILDLIFE NEW JERSEY who also monitors the Abaco end of the migration thinks it may just be a piece of wrack – black tags are not usually used.

If anyone sees a piping plover and has a camera handy, I’d be very pleased to receive any photos, especially showing rings if possible – or indeed ringless legs, which is also informative to the monitors. If it turns out to be a Wilson’s Plover, no matter: they are fine birds in their own right!

PIPL Casuarina Oct 14 Rhonda Pearce via RHCasuarina Map jpg

Finally a quick reminder about Danny’s Kickstarter project “Saving Endangered Piping Plovers through Photography” and his presentation explaining how his photography in PIPL resting areas during their migrations can help to map and complete the picture of this vulnerable species to enable their protection.

You can reach Danny’s film by clicking the link DANNY’S FILM and you will see some fabulous footage of these little birds scuttling around on the beach, looking enchanting; and the commentary will explain the importance of the the birds and the research into their conservation.

RELATED POSTS

RARE GEMS: PIPL ON ABACO 1

50 WAYS TO PLEASE YOUR PLOVER

And finally – what are the good people of Massachusetts doing to help? (great plover skitterings on the shoreline here!)

Credits: All photos, Danny Sauvageau except the last, Rhonda Pearce

Piping-Plover Artmagenta          Piping-Plover Artmagenta          Piping-Plover Artmagenta          Piping-Plover Artmagenta          Piping-Plover Artmagenta          Piping-Plover Artmagenta        Piping-Plover Artmagenta

‘WTF?’ IN BAHAMAS WATERS (3) : LETTUCE SEA SLUG


Lettuce Sea Slug ©Melinda Riger @ Grand Bahama Scuba copy

  ‘WTF?’ IN BAHAMAS WATERS (3): LETTUCE SEA SLUG

The ‘WTF’ series so far has covered Bahamas reef fish on the bizarre end of the unusual-to-completely-weird appearance spectrum. And it has stood, of course, for ‘What’s That Fish?’. Today, it doesn’t. The feature creature isn’t a fish at all; it looks like a plant; it is in fact a SACOGLOSSAN - specifically the Lettuce Sea Slug Elysia crispata

The head end is on the left…Lettuce Sea Slug ©Melinda Riger @ G B Scuba copy

The name ‘sacoglossan’ literally means ‘sap-sucker’ (the sapsucker bird has a different latin name, however). And the slug’s frilly edges supposedly resemble certain types of curly lettuce. I’ve no idea where the ‘crispata’ comes from, but I am sure it doesn’t relate to crisp lettuce. These are creatures of shallow, clear waters such as the sub-tropical reefs of the Bahamas.

Lettuce_Sea_Slug_LASZLO ILYES

 ‘SOLAR POWERED SLUGS’

This isn’t a technical forum and too much science hurts my head. This species primarily lives off algae. However I give you the word KLEPTOPLASTY to drop into your conversation. In a sentence, algae is eaten but only partially digested; certain elements are stored to produce photosynthesis by which light is converted to energy and the slug can live without food. But baffle your neighbour at dinner, why not, by summarising the process as “chloroplast symbiosis”. Meanwhile, I’m fetching a beer.

Lettuce Sea Slug ©Melinda Riger @ GB Scuba copy

My research suggests that very little is known about the mating behaviour of these slugs. The pair shown below may be exploring the possibilities, or at least trying to work out which end is which. One is easy to tell, but the other? Time to make our excuses and leave…

Elysia_crispata_(Lettuce_Sea_Slug_pair) Nick Hobgood

HOW FAST, EXACTLY, DOES A LETTUCE SEA SLUG MOVE?

This rather beautiful video from ‘CORAL MORPHOLOGIC’ will reveal all. You’ll soon see that progress is very slow. I recommend watching the first 30 seconds and you’ll get the idea. If you choose to persist, you will see the slug sort of turn a corner to the left.

Credits: Melinda @ Grand Bahama Scuba, Laszlo Ilyes, Nick Hobgood, Coral Morphologic, Wiki

STANDIN’ ON THE DOCK OF THE BAY: GREAT BLUE HERON ON ABACO


Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 2

STANDIN’ ON THE DOCK OF THE BAY: GREAT BLUE HERON ON ABACO

The occasion: a trip to Sandy Point for a lunch party at the legendary Nancy’s in honour of  Sandy Walker at the end of his 5 years as manager of the Delphi Club. A pair of brown pelicans on the nearby dock were clumsily flying around, diving, perching, drying their feathers, then repeating the cycle. In a quiet moment I slipped away to watch them – and a Great Blue Heron landed quite close by me. So as well as taking photos of the pelicans, I pointed the camera at the heron from time to time. My favourite view is of it standing proudly on the edge of the dock, with the truly azure sea behind it (header and final image).

Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 6

THE PERILS OF A CAMERA UPGRADE

[PHOTOGRAPHIC INTERLUDE - SKIP IF EASILY BORED BY SUCH THINGS]

I don’t have a fancy camera. I would never get the settings right before the bird had flown. Or died, even. So I had been using a Panasonic Lumix FZ45 kindly given to me by Mrs RH in a benign moment, possibly Christmas. Then I made a classic error of upgrading to an FZ72 with an alleged massive 60X zoom. Brilliant, I thought. Big mistake. My old camera has a Leica lens. Used with care and a lens extension (zeugma score!), it is / I am occasionally capable of taking pin-sharp photos. The upgrade camera’s lens turned out not to be a Leica. Almost all the shots I took were ‘soft’, the more so using the zoom. A soft photo taken with a less good lens, zoomed 60X, will never be a better photo. Just an even softer one. I wish I’d had Old Faithful with me instead. When we got home, I immediately dug out OF and sold 60X disappointment. OF is now reinstated as my BF.  

The shots of this heron mostly turned out fairly well, largely because it stayed quite close to me. It flew off a couple of times, then returned to the edge of the dock. Here are a few close-up views of the heron selected from the various pics I took, showing some of the details of this fine bird. Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 3 Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 4 Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 5Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 7Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 10 Then I remembered why I was meant to be at Sandy Point, and went back to Nancy’s for conch fritters and a Kalik or two well OK make that three… Great Blue Heron, Sandy Point, Abaco - Keith Salvesen 11

ROLLING HARBOUR MUSICAL DIGRESSION

Otis Redding recorded ‘Sittin’ on the Dock of the Bay’, arguably his greatest moment, in 1967 a matter of days before he died in a plane crash. The record became the first ever posthumous US Chart #1 (#3 in UK). I’ve dug out a video compo by the excellent Rhino outfit that disinters or at least recycles gems from our musical heritage. It’s not just the voice of Otis Redding that makes this song so poignant and so good – Steve Cropper’s guitar is outstanding too.

Guitarists out there – you want a ‘Chase Chart’, don’t you?

Ch_6_Fig_114http://www.howmusicreallyworks.com

A rare photo of Sandy (centre back row, sunnies on cap) smilingSandy at Sandy Point

Photo Credits: RH, er… that it…

“OL’ BLUE EYES”: WHITE-WINGED DOVES ON ABACO


1024px-Ala_Blanca

“OL’ BLUE EYES”: WHITE-WINGED DOVES ON ABACO

The White-winged Dove Zenaida asiatica  is an easily recognised dove species, being the only one on Abaco with conspicuous white wing markings. The prominent blue eye-rings are another unusual feature of this bird. The blue is skin and not feather colouring. Another identifier is the dark line on the upper neck.

Although the birds are permanent residents on Abaco, they are relatively uncommon. They are not a protected species, and yet unlike some other pigeon and dove species (Mourning Dove, Ring Necked Dove, White-crowned Pigeon, Zenaida Dove) they are not listed among the game birds that have a shooting season. Unlike many species whose range is decreasing for all the usual human-related reasons, this bird appears to be expanding its range – or is possibly being introduced in new areas. Urban development seems not to be not such a deterrent as for other birds, and feeders are also thought to contribute to the spread.

White-winged Dove Range - Xeno Canto

White-winged Dove, Abaco Bahamas - Tom Sheley crop - Version 2

This short audio clip of a White-winged Dove has other background bird sounds, mostly identifiably a red-winged blackbird making its ‘rusty gate hinge’ call

Mike Nelson / Xeno Canto

White-winged Dove, Abaco - Tony Hepburn

FANCY THAT!

STEVIE NICKS name-checks the White-winged Dove and its call in her 1981 hit “Edge of Seventeen” from her Bella Donna album. If your interest is piqued as the Mac again discuss putting behind them their various differences and prodigious substance sampling to re-form (Glastonbury 2015?), see below. However, rehearing this again (having hidden Bella Donna in a locked drawer 30 years ago) the music has not worn well and her voice – sometimes so exciting – is somewhat fingernails on blackboard. 

This final image is by Dan Pancamo who generously uploaded it to Wiki. It is several cuts above the usual generic illustrative images in both quality and style.

White-winged_Dove_by_Dan_Pancamo

Credits: Wiki / Dan Pancamo, Tom Sheley, Tony Hepburn, Xeno Canto

ABACO’S FORGOTTEN LIGHTHOUSE: THE “OLD LIGHTHOUSE”, LITTLE HARBOUR


ABACO’S FORGOTTEN LIGHTHOUSE: THE “OLD LIGHTHOUSE”, LITTLE HARBOUR

Little Harbour Abaco, Aerial View -Simon Rodehn annotated

Little Harbour Abaco, Aerial View (Simon Rodehn)

There’s relatively little that a casual investigator can discover about the ruined lighthouse at Little Harbour, Abaco. This hurricane-damaged wreck is Abaco’s third and largely unknown light, after the icon on ELBOW REEF and the desolate but romantic HOLE-IN-THE-WALL that stands on the southern tip of Abaco, down 15 miles of dodgy track through the National Park. Two specific sources of information begin our tour of the “Old Lighthouse at Little Harbour.

Extract from ROWLETT LIGHTHOUSES OF THE BAHAMAS

“LITTLE HARBOUR Date unknown (station established 1889). Inactive. Ruins of a 1-story concrete keeper’s quarters, known locally as the “old lighthouse.” A modern steel framework tower carried an active light until it was blown over by Hurricane Sandy in October 2012; Trabas has Darlene Chisholm’s photo of the toppled light. A photo and a very distant view are available, and Bing has a satellite view. In an aerial view of the harbor, the light is on the peninsula at upper right. Located at the entrance to Little Harbour, about 25 km (15 mi) south of Marsh Harbour, Great Abaco Island. Accessible by a short walk to the end of the peninsula sheltering the harbor. Site open, tower closed. Site manager: unknown. ARLHS BAH-021; Admiralty J4576; NGA 11808.”

The “Old Lighthouse” – Little Harbour, Abaco

Abaco Escape  – Sandy Estabrook’s essential GUIDE TO THE ABACOS

Often overlooked is (or should we say was) the “Old Lighthouse” as it is called. It was established in 1889 at the entrance to of Little Harbour channel, the southern entrance to Abaco Sound. Once it was a manned light, with the lighthouse keeper and his wife being the only inhabitants of Little Harbour. Of course the keepers are long gone and so is most of the house. The light tower was converted to solar in modern times but was dealt a devastating blow by Hurricane Floyd in 1999. Access is via a path which starts from the shoreline and winds up the hill through seagrapes and bush. Few people venture up here these days. If there is a big ocean swell running, walk down to the cliff top in front of the lighthouse, where you’ll find a blowhole known as the Dragon. Depending on swell height, it could be roaring, snorting and shooting out clouds of spray. Sandy Estabrook

Photos referenced by Rowlett  – see extract above

Note the steel frame tower on the right, a structure replacing the old light destroyed by Hurricane Floyd in 1999; and itself toppled by Hurricane Sandy in 2012

A GALLERY OF RECENT IMAGES

Lighthouse ruins, Little Harbour Abaco, Patrick Shyu

Lighthouse ruins, Little Harbour Abaco, Patrick Shyu. The only interior shot I could find. Note the fallen steel tower (2012) (and seen from the outside below)

Lighthouse ruins, Little Harbour Abaco - Patrick Shyu

Lighthouse ruins, Little Harbour Abaco – Patrick Shyu

Little Harbour lighthouse Abaco - Darlene Chisholm

Little Harbour lighthouse Abaco, post Hurricane Sandy – Darlene Chisholm

Little Harbour Lighthouse Ruins, Abacos - MV Shingebiss

The Old Lighthouse ruins, taken during a cruise (MV Shingebiss)

LOCATION

In the header image, the location of the Light, looking very roughly north, is shown as a grey pimple on the eastern peninsula that forms the Little Harbour bay. There is no other building in this area. Below are some additional aerial maps showing the path to the Light and its relative remoteness. It is not covered in the wonderful book on Bahamas lighthouses by Annie Potts entitled “Last Lights” (2011, Fish House Press). I surmise that this small Light was more of a beacon to pinpoint the location of the entrance to Little Harbour, and perhaps to enable triangulation with the large lights at ELBOW REEF and HOLE-IN-THE-WALL.

Little Harbour Lighthouse 1 jpg copy

Little Harbour Lighthouse 2 jpg

An unusual aerial view of Little Harbour Lighthouse from the north, showing the path to it. You can see the ‘modern steel framework tower’ referred to in the ROWLETT entry above, replacing the original lighthouse tower destroyed by Hurricane Floyd and later toppled by Hurricane Sandy.

Little Harbour Lighthouse Marinas.com

Little Harbour lighthouse Marinas.com

Credits:  Simon Rodehn (LH aerial view – thanks again!), Rowlett’s Lighthouses, Sandy Estabrook / Abaco Escape, Wiki Map, Patrick Shyu, Darlene Chisholm, MV Shingbiss, marinas.com

WINTER WARBLERS ON ABACO: NORTHERN PARULA


Northern Parula,  Abaco Craig Nash

WINTER WARBLERS ON ABACO: NORTHERN PARULA 

The NORTHERN PARULA Setophaga americana is a stumpy little migratory warbler with white arcs above and below the eyes, and with a slate-coloured back distinctively smudged with an olive patch in both sexes. These birds are winter residents on Abaco, and are common throughout the island and cays. They are arriving right now, including juveniles making their first trip to Abaco. Wonder what they’ll make of it?

Northern Parula, Abaco - Bruce Hallett (adult male)

Range Map: Summer (Yellow) & Winter (Blue)220px-Parula_americana_map.svg

Parulas are primarily insect eaters, with a preference for caterpillars and spiders. They sometimes dart from a perch to snatch insect prey in mid-air. In winter they vary their diet with berries and fruit. You are most likely to see one foraging busily in bushes and low trees – maybe coming up for air by poking its head above the foliage…

Northern Parula, Abaco (Craig Nash)

TAXONOMY DOMINÉ

WHAT THE HECK IS  A “PARULA”? Originally, Linnaeus classified this little bird at a Tit, or Parus. For some reason, “as taxonomy developed the genus name was modified first to Parulus and then the current form” (Wiki Hat-tip). But although none of the other 37 Abaco warbler species is a Parus, Parulus or Parula, they all come under the family name Parulidae. The august institutions that deal with these things have classified the Parula as a ‘Setophaga’, along with many other warblers.

This photo shows the distinctive upper chest band of the adult bird very clearlyBAHAMAS - Northern Parula Warbler, Abaco -  Becky Marvil

The CORNELL LAB list of adult Parula identifiers is shown below, with adult females being similar ‘but with greener backs’. These specifics are pretty much borne out by the birds shown here (except for the last bird, an immature female just beginning to develop the Parula characteristics). The next photo by Woody Bracey, is a perfect example of what to look out for. 

  • Small songbird.
  • Blue-gray hood and wings.
  • Yellow chest with black and reddish band across it.
  • White crescents above and below eyes.
  • Green back.
  • Two white wingbars.

Northern Parula, Abaco (Woody Bracey)

Parulas produce different sounds to listen out for – a ‘chip’ call that could be any number of birds (IMO); a song; and a trill. Here are examples of each from the essential bird call site Xeno Canto.

CHIP CALL Paul Marvin / Xeno Canto

SONG Paul Marvin / Xeno Canto

TRILL Jelmer Poelstra / Xeno Canto

ABACO BAHAMAS - Northern Parula 2, 1-22-12, Nursery copy 2

This is an immature female parula, a ‘first fall’ bird, and therefore on its first visit to AbacoNorthern Parula, Abaco - Bruce Hallett (imm. - 1st fall female)

I’ll end with an excellent 2:18 mins-worth of Parula-based video from Wild Bird Video Productions

RELATED POSTS

WARBLER GALLERY ABACO’S 37 SPECIES

PERMANENT RESIDENT WARBLERS  – THE ABACO 5 

ENDEMIC BIRDS - ABACO’S 4, inc. 2 WARBLERS

CREDITS: Photos – Craig Nash, Bruce Hallett, Becky Marvil, Gerlinde Taurer; Audio – Xeno Canto; Video -Wild Bird Video Productions; Cornell Lab; a smidge of Wiki