FIVE STARS: BAHAMAS ENDEMIC BIRDS (FOUR FROM ABACO)


20130106_Bahamas-Great Abaco_4846_Bahama Yellowthroat_Gerlinde Taurer copy

Bahama Yellowthroat (Gerlinde Taurer)

FIVE STARS: BAHAMAS ENDEMIC BIRDS (FOUR FROM ABACO)

The Caribbean Endemic Bird Festival is underway. You can find out more on the CARIBBEAN BIRDS FESTIVALS Facebook page. Abaco is fortunate to be home to 4 of the 5 endemic Bahamas species. The fifth, the beautiful BAHAMA ORIOLE Icterus northropi, was found on both Abaco and Andros until the 1990s, when it sadly became extirpated from Abaco. Now found only on Andros, there are thought to be fewer than 300 Orioles left – a barely sustainable number. The species is unsurprisingly IUCN listed as critically endangered. Here’s a picture of one as a reminder of what Abaco is now missing…

Bahama_Oriole (Wiki)

Bahama Oriole

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Abaco’s four endemic species are the tiny Bahama Woodstar hummingbird, the Bahama Yellowthroat, the Bahama Warbler (since 2011), and the Bahama Swallow. All are of course permanent breeding residents on Abaco and its outer Cays. None is exclusive to Abaco; all are relatively plentiful. The Woodstar is perhaps the hardest to find, not least because it competes territorially with the Cuban Emerald hummingbird. Even Woodstars can be found easily in some areas – Man-o-War Cay is a good place for them, for example. Here are some striking images of these four endemic bird species taken from the archives for “The Birds of Abaco” published last month. 

BAHAMA WOODSTAR Calliphlox evelynae 

Bahama Woodstar male 3.1.Abaco Bahamas.2.12.Tom Sheley copy

Bahama Woodstar (m) (Tom Sheley)

Bahama Woodstar (f) TL IMG_3213 2

Bahama Woodstar (f) Tara Lavallee

BAHAMA YELLOWTHROAT Geothlypis rostrata

Bahama Yellowthroat vocalizing.Abaco Bahamas.Tom Sheley

Bahama Yellowthroat (Tom Sheley)

Bahama Yellowthroat (M) BH IMG_0675 copy

Bahama Yellowthroat (Bruce Hallett)

BAHAMA WARBLER Setophaga flavescens

Bahama Warbler BH IMG_8398 copy - Version 2

Bahama Warbler (Bruce Hallett)

Bahama Warbler WB P1001012 copy

Bahama Warbler (Woody Bracey)

BAHAMA SWALLOW Tachycineta cyaneoviridis

Bahama Swallow CN

Bahama Swallow (Craig Nash)

bahama-swallow EG  copy

Bahama Swallow (Erik Gauger)

“The Delphi Club Guide to the Birds of Abaco”  was published as limited edition of 500 and has only been for sale for 8 weeks or so exclusively through the Delphi Club. Yesterday, we passed a happy milestone in that short time as the 250th copy was sold. Complimentary copies have also been donated to every school and relevant education department on Abaco to tie in with the excellent policy of teaching children from an early age the value of the natural world around them, the importance of its ecology, and the need for its conservation. The cover bird for the book was easy to choose – it just had to be a male Woodstar in all his glory with his splendid purple ‘gorget’. 

Bahama Woodstar (m) BH IMG_0917 copy

Bahama Woodstar (m) Bruce Hallett

JACKET GRAB JPG

Image credits as shown; otherwise, ‘cover bird’ by Tom Sheley, Bahama Oriole from Wiki and CEBF flyer from the Bahamas National Trust

ENDEMIC BAHAMA SWALLOW: FROM ‘THREATENED’ TO ‘ENDANGERED’ RED LISTING


THE BAHAMA SWALLOW: A SMALL ENDEMIC BIRD WITH BIG SURVIVAL PROBLEMS

The IUCN (International Union for Conservation of Nature) RED LIST status of the endemic Bahama Swallow Tachycineta cyaneoviridis has been upgraded from ‘Threatened’ to ‘Endangered’ because its small declining population faces a number of threats that are likely to worsen in the future. In particular, renewed logging activity and widespread property development could result in a further decline in breeding habitat.

The excellent photo above is the ‘Wikimedia poster bird’, but was in fact taken by prolific bird photographer Craig Nash in the main driveway of the Delphi Club, Abaco in 2010. He blogs as Peregrine’s Blog – see RECOMMENDED LINKS in right sidebar

This swallow species breeds only on 4 Bahamas islands: Grand Bahama, Abaco and Andros; and on New Providence, where a few birds are seen each breeding season, suggesting a ‘relict’ population there. The map below suggests that confirmed  numbers are so few that New Providence sadly no longer counts as an ‘official’ breeding island.

The Bahama Swallow winters throughout the Bahamas and has been recorded as far as eastern Cuba, but in general the full wintering range is little known. It is a rare vagrant elsewhere during migration, including Florida. The preferred habitat is in the pine forests, where they nest in old woodpecker holes in Caribbean Pines using pine needles, Casuarina twigs, and grass to make the nest which they line with feathers. They typically lay 3 eggs. Incubation is 15 days and the fledging period is around 22 days.

Sound credit: Jesse Fagan / Xeno-Canto

Besides loss of habitat due to human intervention, other factors in population decline are thought to relate to hurricanes and forest fires. The Red List proposals for conservation of the Bahamas Swallow state: “Survey all suitable breeding habitat and assess the status of the species and its habitat; Gather empirical evidence to clarify population trends as a priority; Assess winter distribution and habitat requirements; Study the impacts of fire suppression on the species; Maintain natural nest-sites through a pine snag management programme, and potentially fire management; Assess and monitor the success of the nest box scheme; Protect remaining forest in the Bahamas and minimise the area lost to housing development and logging; Assess the impact of starling and house sparrows on the population and develop appropriate measures to reduce the threat”

The Bahama Swallow has joined other notable bahamian wildlife species in receiving the accolade of a stamp and a coin: