Photo credits: Tom Sheley
‘BAHAMA DUCK‘ Anas bahamensis
Photos taken on Abaco by Gerlinde Taurer, a major contributor to “Birds of Abaco”
The Black-and-White Warbler Mniotilta varia is a fairly common winter resident on Abaco. They are the only birds of the genus Mniotilta (“moss-picker” gr.). Unlike most warblers these birds behave rather like nuthatches, creeping along the trunks and branches of trees grubbing insects out of the bark. Pine trees are ideal for this. A lot of the 37 species of warbler on Abaco are small and yellow. But as soon as I saw one of these for the first time, I was very relieved. I knew exactly what it was – the bird that has been described as ‘a flying humbug’.
Finally, this is a great short video of this little bird in action. Even if you only watch the first 30 seconds, you will be enchanted…
Image Credits: Bruce Hallett, Tom Shelley, Tom Reed. All are contributors to “The Delphi Club Guide to the Birds of Abaco” (Publ. March 2014)
A humorous conversation
A rather wind-blown gull in non-breeding plumage
WHAT DO LAUGHING GULLS SOUND LIKE? ARE YOU OVERSENSITIVE?
I made a couple of short recordings of the gulls in full humour mode; also a short video of the breeding pair above. If you have never heard them before, you might want to listen to the full 30 seconds. For anyone else there’s a convenient lull at around 15 secs before they kick off again.
Breeding adult (Birdorable)
All photos, audio clip, video: Keith Salvesen / Rolling Harbour
The Tricolored Heron Egretta tricolor is one of 6 heron species found on Abaco, and is a permanent breeding resident. To which can be added 4 sorts of egret to complete a line up of expert fishers, all equally at home hunting in the water or from the shore, or surveying the scene from nearby vantage points like bushes and trees. A long neck, a long bill and long legs make this heron species ideally adapted for wading. Like other herons and egrets, it will stand stock-still waiting for the perfect fish to swim into range. However they are also active hunters, and will stalk prey or chase it by striding quickly through the water in pursuit. They eat fish, crustaceans, reptiles, and insects.
The heron and egret species of Abaco
Breeding plumage: smart blue bill and a fish to put in it
Credits: Phil Lanoue (1, 7); Dan Pancamo (2); Keith Salvesen (3); Woody Bracey (4); Bruce Hallett (5)
WILSON’S PLOVER Ochthodromus wilsonia PR B 2
‘Broken Wing Display’ to distract predators from a nesting area
BLACK-BELLIED PLOVER Pluvialis squatarola WR 1 (Intermediate Plumage)
AMERICAN GOLDEN PLOVER Pluvialis dominica TR 4
SEMIPALMATED PLOVER Charadrius semipalmatus WR 2
KILLDEER Charadrius vociferus WR 2
PIPING PLOVER Charadrius melodus WR 3
Photo credits: Sandy Walker, Craig Nash, Tom Sheley, Clare Latimer, Tony Hepburn, Bruce Hallett, Tom Reed
The Bahama warbler is a significant species with a near-unique status in the Bahamas:
Until 2011, the BAWA was classified as a subspecies of the YELLOW-THROATED WARBLER. The ornithological powers-that-be then recognised that the two species were distinct in both appearance and in vocalisation, and split them into separate species (this splitting / amalgamating process occurs annually and plays havoc with the precious ‘Life Lists’ kept with such rigour by ardent birders**.
The BAWA has such a confined range that even the extensive reach of the wonderful Cornell Lab of Ornithology has not got as far as this bird. The info sections of the otherwise comprehensive website for Neotropical Birds are blank and waiting for someone to upload some details. Here are a few facts in one of a very good series of info-graphics produced by the BAHAMAS NATIONAL TRUST.
** I have never even started a Life List, which demonstrates just how lightweight I am as a bird person
Credits: Alex Hughes (1, 4); Bruce Hallett (2, 6); Woody Bracey (3); Tom Sheley (5); Range Map, Cornell; Info G, BNT
Abaco has two permanently resident woodpecker species, the WEST INDIAN WOODPECKER and the HAIRY WOODPECKER. There is a third, migratory woodpecker species that is a fairly common winter resident, the yellow-bellied sapsucker Sphyrapicus varius.
Like its woodpecker cousins, the sapsucker drills holes in trees (see below). The dual purpose is to release the sap, which it eats, and to attract insects that it also eats. A two-course meal, if you like. They’ll also eat insects on an undrilled tree, and even ‘hawk’ for them in flight. They balance their diet with fruit and berries.
The distinctive patterns of sapsucker holes may completely encircle the trunk of a tree with almost mathematical precision. This is sometimes described as ‘girdling’ and may have a damaging effect on a tree, sometimes even killing it if the bark is severely harmed. This may require preventive measures in orchards for example, though note that in the US Yellow-bellied Sapsuckers are listed and protected under the Migratory Bird Treaty Act so radical action is prohibited.
YELLOW-BELLIED SAPSUCKER SOUNDS
DRUMMING (Xeno-Canto / Richard Hoyer)
CALL (Xeno-Canto / Jonathon Jogsma)
On Abaco, palms are a favourite tree for the sapsuckers. There are several palms along the beach at Delphi. Below is a coconut palm that had seen plenty of sapsucker action, with the drill holes girdling the entire trunk from top to bottom.
In their breeding grounds yellow-bellied sapsuckers excavate a large cavity in a softwood tree as a nest. They mate for life, and often return to the same nest year every year, with the pair sharing nesting duties. I have no idea whether the pair migrate south for the winter together, or whether they agree to take a break from each other. I’d like to think it’s the former…
Credits: Photos Gerlinde Taurer, Tom Sheley, RH; Cornell Lab (Range Map) & Xeno-Canto (YBS recordings as credited above)
Species featured in ‘Guide to the Birds of Abaco’ by Keith Salvesen, pp 242-3
THE BIRDS OF ABACO 