BAHAMA MOCKINGBIRD: RARE LEUCISTIC VARIANT ON ABACO

March 23, 2018 by Rolling Harbour

BAHAMA MOCKINGBIRD

RARE LEUCISTIC VARIANT ON ABACO

The header image is of a Bahama mockingbird recently photographed by keen-eyed Abaco birder Keith Kemp. It is a thing of wonder and beauty, exceptionally rare and possibly unique. I can find no other example of a leucistic bird of this species online.

This is not Keith’s first leucistic bird discovery on Abaco either – a while back he found a leucistic Western spindalis. You can read more about leucism and its distinction from albinism, and see a number of other examples of leucism including a white turkey vulture HERE

Even more astonishingly, Keith managed to get a photo of the ‘white’ bird and a ‘normal’ bird together (above). The difference is startling. Below is a fine photo by Peter Mantle of a Bahama mockingbird, as you would expect to see one – basically brown with a pale, flecked front / underside.

LEUCISM? EXCUSE ME, AND THAT IS?

I’ll recap what I wrote in the earlier post linked above. First, what it is not. It is not albinism, which results from diminished or lost melanin production that affects pigmentation. One characteristic of the condition is the tendency to pink eyes, which of course is seen in humans as well as animals and birds. For example:

Albino Fwuffy Bwunny Wabbit

WELL, WHAT IS IT THEN?

Put simply, melanin is only one of many ingredients of pigmentation. Leucism is caused by pigment loss involving many types of pigment, not just melanin. In birds this results in unnaturally pale or white colouring of feathers that may be partial or entire. The eyes of a bird with leucism are unaffected – so, not pink. At one extreme, if all pigment cells fail, a white bird will result; at the other extreme, pigment defects cause patches and blotches of pale or white on the bird, often called a ‘pied’ effect. The condition can be inherited.

KK’s leucistic Western spindalis, an example of partial or ‘pied’ leucism

So there you have it: another extreme rarity for Abaco, and a further example of how rewarding – and surprising – birding on Abaco can be. To repeat the link to the more detailed article on leucism in birds, you can find with (*distraction alert*) some music and inappositely comedic material thrown in HERE

All photos Keith Kemp except the ‘normal’ bird, Peter Mantle

A GALLERY OF GORGEOUS: ABACO BIRDS ON DISPLAY

May 12, 2016 by Rolling Harbour

A GALLERY OF GORGEOUS: ABACO BIRDS ON DISPLAY

Occasionally I feature birds photographed elsewhere than on Abaco – GRAND BAHAMA, for example. Almost always they are birds that are recorded for Abaco but are rarely encountered there (and even more rarely photographed). The ROSEATE SPOONBILL, for one. Or they may be birds that have come very close to Abaco but not quite reached the island… the WOOD STORK for example.

Today, I am showcasing some birds photographed on Abaco by Duncan Mullis during a trip from Grand Bahama. My selections from his trip are chosen to showcase colourful birds, endemic birds, and favourite birds of mine. Yours too, I hope.

ABACO (CUBAN) PARROTS Abaco Parrot (Duncan Mullis)

Two of the species were new to Duncan. One was the Bahama Mockingbird.

BAHAMA MOCKINGBIRD Bahama Mockingbird, Abaco (Duncan Mullis)

The other new species for Duncan was the PEARLY-EYED THRASHER. Until last March, this species had never been recorded on Abaco. Then one turned up in Treasure Cay and has stayed there ever since. It is the latest of several ‘new species’ found on Abaco in the last couple of years. To read about the discovery by Woody Bracey click on the link above or below.

PEARLY-EYED THRASHER Pearly-eyed Thrasher, Treasure Cay, Abaco (Duncan Mullis)

YELLOW-THROATED WARBLER Yellow-throated Warbler, Abaco (Duncan Mullis)

BAHAMA SWALLOW (ENDEMIC) Bahama Swallow, Abaco (endemic) (Duncan Mullis

SMOOTH-BILLED ANI Smooth-billed Ani, Treasure Cay, Abaco (Duncan Mullis)

YELLOW WARBLER Yellow Warbler, Abaco (Duncan Mullis)

Credits: all photos by Duncan Mullis, with many thanks for use permission

BAHAMA MOCKINGBIRD: NEW SUBSPECIES FOR ABACO?

April 9, 2015 by Rolling Harbour

BAHAMA MOCKINGBIRD: NEW SUBSPECIES FOR ABACO?

[Camera. Lights. ACTION] Attenborough, D (for it is he), off-screen, in familiar breathy tones…

“Here, deep in the impenetrable pine forests of the Abaco National Park, lives an incredible bird discovery until recently known only to four people in the world. For here, where the unique Abaco Parrots nest in their underground holes and the rare Kirtland’s Warbler continues its brave stand against extinction… here is a completely new bird subspecies that is destined to take the avian world by storm… the Red-faced Bahama Mockingbird Mimus bahamensis volvensharborii…”

I can’t keep that nonsense up for any longer, you’ll be relieved to hear… But here is the story. Woody Bracey was taking us, with his friend Bill, in search of the rare and elusive Kirtland’s Warbler, about which more soon (*Spoiler Alert* Yes, we did. Four). We had stopped the truck in a remote area of the National Park to listen for and indeed watch parrots. I was in the front of the truck, window down, listening hard when suddenly, right by us, I suddenly heard the beautiful song of a Bahama Mockingbird. Here are two recordings I made the previous year – the first is over 1 min long, the second is only 17 secs.

I grabbed my camera and started to fire away at the bird, which was perched on a dead branch just a few feet away near the edge of the track. I had no time to think about depth of field, light balance, or refrangible focus indices, I just went for it. It was Woody who first noticed the remarkable feature of this bird – its red face. It first, I thought it was just on the chin, but later I saw that the red colouring is above the beak as well.

Woody is one of the most experienced birders in the Bahamas, and he had never come across this variant before. Sometimes a bird may have white patches or some other LEUCISTIC colour variation. But red is something very different. Once we had ruled out blood (no evidence of injury) and strawberry jam (no likelihood of a propensity for sticking face in same), an altogether more exciting possibility began to emerge…

The Bahamas Birding Triumvirate will be debating this find, no doubt. Is this sort of red-faced variant found in any other bird species? Is it a one-off? Or is it perhaps one example of a small subspecies confined to Abaco or the wider Bahamas? Or does it just come from eating red berries, as in photo #3? Has anyone come across a BM like this one? Any comment welcome via the comment box or email.

This is my personal favourite pic, taken while the bird was in mid-song. I’d have liked an ‘open mouth’ shot, but frankly when you find an apparently new bird in the middle of nowhere, you can’t have everything….

Finally, you may well ask “So that’s all very well, but what does a ‘normal’ Bahama Mockingbird look like close-to?” Here’s an example for comparison

STOP PRESS (MAY 2015) The jury is back, the verdict unexciting (as I suppose was inevitable). The Bahamas Birding Sages have concluded that the red markings are simply staining from berries, as seen in #3 above. This is the obvious solution, but I am grateful to those (culminicola in the comments below, and a birding forum where this post has been discussed) who suggested the possibility of red pollen. The pine forest in which we saw this bird doesn’t in fact have flowers – or anyway red-pollened flowers – so berries must be the answer. In short, no Mimus bahamensis volvensharborii…

All photos RH, cheers to Woody for leading the trip and for spotting the unusual features of this bird PDQ

BAHAMA MOCKINGBIRD NEST, CHICKS & FLEDGING VIDEO

February 6, 2015 by Rolling Harbour

Bahama Mockingbird, Abaco – Bruce Hallett

BAHAMA MOCKINGBIRD NEST, CHICKS & FLEDGING VIDEO

I tend not to reblog other people’s posts wholesale. For a start, there can be compatibility issues that are tiresome to sort out. Often, they will include material – interesting in its own right – that is applicable to that blog but not to this one… Or it might be inappropriate to add other useful info or images. Sometimes, though, a post is perfect. This is one such time. I have recently started to follow Dominique’s blog WANDER IN NATURE, having come across her post about the Bahama Mockingbird Mimus gundlachii. The Baha Mocker is on the ‘wants list’ of any birder on Abaco. I have never seen a photo of a nest or chick before, far less seen either in real life. So here they are, not on Abaco but only a mockingbird’s flight away!

BAHAMA MOCKINGBIRD TAKES FLIGHT

JUNE 2014 Sometime in the transition between Spring and Summer, I stumbled across a bird’s nest wedged in the top corner of the rose garden. After a much needed boost, I peered in and discovered the bobbing beaks of three little nestlings, so fragile and still without their feathers.

Bahama Mockingbird Chicks (Wander in Nature)

Over the next few days, I hoped to follow their growth and capture them during feeding time with their two parents that had clearly made their presence known. One of the young birds appeared to take over the nest for a while, and eventually took flight into the big wide world.

Bahama Mockingbird Fledgling (Wander in Nature)

Bahama Mockingbird Adult & Fledgling (Wander in Nature)

Bahama Mockingbird Fledgling (Wander in Nature)

FIRST FLIGHT

The whole story is here… there’s a great deal of action at this nest!

Here are two recordings of the beautiful song of this bird that I made 18 months ago a short way down a logging track in the pine forest south of Crossing Rocks (before the Y). Note the repetition of particular phrases before the bird moves on to the next sound in its extensive repertoire.

BAHAMA MOCKINGBIRD ‘Making a good impression…’

NORTHERN MOCKINGBIRD ‘Taking off…’ (Mimicry)

Credits: Header image, Bruce Hallett; all other images and video, Dominique @ Wander in Nature

ABACO: THE PERFECT PLACE FOR BAHAMAS BIRDING

August 13, 2014 by Rolling Harbour

ABACO: THE PERFECT PLACE FOR BAHAMAS BIRDING

I’ve ~~fairly~~ very often mentioned the remarkable diversity of the bird species on Abaco. This small island has a wide variety of permanent resident species and the advantage of being on a primary migration route so that it has both winter and summer migratory visitors. Here’s an example of some of the species a visitor might reasonably expect to find during a day’s birding. This isn’t an ‘invented inventory’, easy though that would be to compile. It records a birding outing by Abaco visitor Susan Daughtrey, guided by the legendary Woody Bracey, with sightings of 53 species from A (baco Parrot) to Z (enaida Dove). Here are some of Susan’s photos of the birds she encountered. At the end is the full list of the 34 species she photographed.There’s nothing very rare – most of those shown are permanent residents (PR), breed on Abaco (B) and are commonly found (1). Hence the code* PR B 1. SR is for the 2 summer residents, I is for the introduced collared dove. The best ‘get’ is the Bahama Mockingbird (PR B 3), a bird mainly of the pine forests and not so easy to find.

ADDENDUM Susan has now sent me her complete record for a great day out in which 53 species were seen. The list shows the numbers seen for each species. I have had to reformat the list from the original to make it work in this blog. I have added links for the first bird, the Black-bellied Whistling Duck, which was recorded on Abaco for the first time in early June. Of the six seen at any one time to begin with (including at Delphi), the reported numbers dropped to 2, then 1. The latest news is an unconfirmed sighting of a single bird at Treasure Cay Golf Course.

ABACO (CUBAN) PARROT Amazona leucocephala PR B 1

ANTILLEAN NIGHTHAWK Chordeiles gundlachii SR 1 Amazon (Cuban) Parrot, Abaco (Susan Daughtrey) Antillean Nighthawk, Abaco (Susan Daughtrey)

BAHAMA MOCKINGBIRD (ENDEMIC) Mimus gundlachii PR B 3

BAHAMA SWALLOW (ENDEMIC) Tachycineta cyaneoviridis PR B 1

BAHAMA PINTAIL (WHITE-CHEEKED PINTAIL) Anas bahamensis PR B 1

BLUE-GRAY GNATCATCHER Polioptera caerulea PR B 1

CUBAN PEWEE Contopus caribaeus PR B 1 Cuban Pewee, Abaco (Susan Daughtrey)

EURASIAN COLLARED DOVE Streptopelia decaocto I PR B 1 Eurasian Collared Dove, Abaco (Susan Daughtrey)

HAIRY WOODPECKER Picoides villosus PR B 1 Hairy Woodpecker, Abaco (Susan Daughtrey)

LEAST TERN Sternula antillarum SR B 1

LOGGERHEAD KINGBIRD Tyrannus caudifasciatus PR B 1 Loggerhead Kingbird, Abaco (Susan Daughtrey)

MAGNIFICENT FRIGATEBIRD (female) Fregata magnificens PR B 1

OLIVE-CAPPED WARBLER Setophaga pityophila PR B 1

RED-LEGGED THRUSH Turdus plumbeus PR B 1 Red-legged Thrush, Abaco (Susan Daughtrey)

RED-WINGED BLACKBIRD Agelaius phoeniceus PR B 1 Red-winged Blackbird, Abaco (Susan Daughtrey)

SMOOTH-BILLED ANI Crotophaga ani PR B 1 Smooth-billed Ani, Abaco (Susan Daughtrey)

THICK-BILLED VIREO Vireo crassirostris PR B 1

WESTERN SPINDALIS Spindalis zena PR B 1

WHITE-CROWNED PIGEON Patagioenas leucocephala PR B 1 White-crowned Pigeon, Abaco (Susan Daughtrey)

SUSAN’S LIST OF BIRDS PHOTOGRAPHED

SUSAN’S COMPLETE LIST FOR THE DAY – 53 SPECIES

To learn about Abaco’s latest new species the Black-bellied Whistling Duck click HERE & HERE

Credits: all photos, Susan Daughtrey; *the excellent birding code was devised by ornithologist Tony White with Woody Bracey

BAHAMAS STAMPS & ABACO BIRDS: ‘IMITATION IS THE SINCEREST FORM OF PHILATELY’

July 29, 2014 by Rolling Harbour

BAHAMAS STAMPS & ABACO BIRDS: ‘IMITATION IS THE SINCEREST FORM OF PHILATELY’

The Bahamas produces frequent issues of wildlife stamps. Mostly birds, but also reef fish and sea creatures, animals, butterflies and flowers. I am gradually collecting an album of Bahamas wildlife stamps on a PHILATELY page. I’ve been having a look at a 16-bird issue from 1991 which reflects the wide diversity of species extremely well. Here is the set, with comparative photos of each bird. All but one were taken on Abaco, the rare Burrowing Owl being the exception. All the other 15 birds may be found on Abaco as permanent residents, either easily or with a bit of a look and some luck. I personally have not seen the Clapper Rail (though I saw a SORA) or the rarer Key West Quail-Dove.

Osprey - Abaco Marls (Keith Salvesen)

Clapper Rail, Abaco (Erik Gauger)

BAHAMAS - Key West Quail-dove (Becky Marvil)

Smooth-biled Ani, Abaco (Bruce Hallett)

Burrowing Owl (Keith Salvesen)

Mangrove Cuckoo, Abaco, Bahamas (Tony Hepburn) copy

Bahama Mockingbird, Abaco (Keith Salvesen)

Red-winged Blackbird Abaco Bahamas (Keith Salvesen)

Thick-billed Vireo, Abaco (Susan Daughtrey)

Bahama Yellowthroat vocalizing.Abaco Bahamas.Tom Sheley

Western Spindalis Abaco (Janene Roessler)

Greater Antillean Bullfinch, Abaco (Bruce Hallett)

The bird list and image credits

Green Heron Butorides virescens Nina Henry

Turkey Vulture Cathartes aura Keith Salvesen / RH (Delphi)

Western Osprey Pandion haliaetus Keith Salvesen / RH (Marls)

Clapper Rail Rallus longirostris Erik Gauger

Royal Tern Thalasseus maximus Keith Salvesen / RH (Marls)

Key West Quail-Dove Geotrygon chrysia Becky Marvil

Smooth-billed Ani Crotophaga ani Bruce Hallett

Burrowing Owl Athene cunicularia Keith Salvesen / RH (UK)

Hairy Woodpecker Picoides villosus Tony Hepburn

Mangrove Cuckoo Coccyzus minor Tony Hepburn

*Bahama Mockingbird Mimus gundlachii Keith Salvesen / RH (National Park)

Red-winged Blackbird Agelaius phoeniceus Keith Salvesen / RH (Backcountry Abaco)

Thick-billed Vireo Vireo crassirostris Susan Daughtrey

*Bahama Yellowthroat Geothlypis rostrata Tom Sheley

Western Spindalis Spindalis zena Janene Roessler

Greater Antillean Bullfinch Loxigilla violacea Bruce Hallett

* Endemic species for Bahamas

STAMPS http://freestampcatalogue.com Tony Bray

ABACO: AN IMPORTANT BIRDING AREA IN THE BAHAMAS

January 15, 2014 by Rolling Harbour

Abaco (Cuban) Parrot

ABACO: AN IMPORTANT BIRDING AREA IN THE BAHAMAS

The Bahamas National Trust BNT is one of several organisations in the Bahamas responsible for conservation across the widely scattered islands of the Bahamas. One of its tasks is to look after the birds and their habitat, and from time to time the Trust publishes articles about their work. The Abaco-related material below is taken from a much longer article by Predensa Moore and Lynn Gape that covers the whole area, and concerns the importance of Abaco as a prime Bird Area. This applies in particular to Little Abaco and the Northern Cays; and to the large area of South Abaco that incorporates the National Park. The bird images used show some Abaco speciality birds mentioned by the BNT in their material.

BAHAMA MOCKINGBIRD Mimus gundlachiiBAHAMA WOODSTAR Calliphlox evelynae BAHAMA YELLOWTHROAT Geothlypsis rostrata

CUBAN EMERALD Chlorostilbon ricordiiCredits: BNT; Bahama Woodstar, Ann Capling with thanks; the rest, RH

FINE FEATHERS (1): ABACO BIRD ‘PICS’ OF 2013

January 6, 2014 by Rolling Harbour

FINE FEATHERS (1): ABACO BIRD ‘PICS’ OF 2013

The Least Tern in the header image was a stroke of luck. I was watching plovers on the beach when it landed on the tideline with a small fish in its mouth. I just had time to point the camera and fire off 3 shots before it flew off again. This was the only usable image. I liked the fish, of course, and the way its little legs made a dent in the wet sand.

This Black-necked Stilt was attempting to distract me from a nearby nest, which I’d have known nothing about until it tried to distract me. It zig-zagged towards me, striding through the water while yelling, and then took off and flew at my head! Twice. I moved away…

An effortlessly elegant Red-winged Blackbird

A Reddish Egret (white morph) in the mangroves out on the Marls takes a call on its cellphone

A Bahama Mockingbird deep in the pine forest of the Abaco National Park

A baby West Indian Woodpecker takes a look at the wide world from its nest box. Within a week, it and 4 other chicks had flown.

A Red-legged Thrush in full song

The Bahama Yellowthroat is one of 4 endemic species on Abaco. Only the males have the striking Zorro mask. They are shy birds, but also inquisitive. I learnt to imitate their call (not difficult) to bring them out of scrub and bushes. Once out, they liked to take a good look from a safe distance.