Winter migrants Abaco | ROLLING HARBOUR ABACO

PRAIRIE WARBLERS ON ABACO: CHIRPY WINTER RESIDENTS

There are 32 warbler species that migrate south and join ABACO’S 5 PERMANENT RESIDENT WARBLERS for their winter break. Some, like the Prairie Warbler Setophaga discolor, are common; a few are quite rare; and one, the endangered Kirtland’s Warbler, is a ‘bird of a lifetime’ if you manage to see one. Or even hear one.

The Prairie Warbler prefers open areas to coppice and pine forest, though despite its name it does not inhabit prairies in the summer months. Scrubland and backcountry wood margins are a favourite haunt. This is a tail-bobbing warbler species, and is often seen low down in foliage or actually on the ground.

The wonderful photographs below were all taken on Abaco by Gerlinde Taurer, whose collection of bird species photographed on the island was used extensively in the “THE BIRDS OF ABACO“, including one of the Prairie Warblers below (awarded a full page).

The overall impression is of a small yellow bird with darker wings and back, and conspicuous black streaking. However there are considerable variations in the colouring and patterning within the species depending on age, sex, season and so on. One indicator of the species is a dark line through the eye. Mostly, there will be a patch of yellow above and / or below the eye. However, all the birds on this page show differences from each other in their markings, and one can only generalise about their appearance.

Prairie Warblers forage for insects on tree branches or sometimes on the ground. You may also see them ‘hawking’ for insects. They have two types of songs, sung at different times – for example in the breeding season, or when territorial assertion is called for. Here is one example:

Mike Nelson Xeno-Canto

These warblers also use a simple chipping calls of the ‘tsip’ or ‘tsk’ kind.

Paul Marvin Xeno-Canto

Though currently IUCN listed as ‘Least Concern’, numbers of this species are declining. The two main threats to them are mankind (habitat loss); and nest parasitism by, in particular, the Brown-headed Cowbird, a bird which causes problems for many other species.

Credits: All photos Gerlinde Taurer except header Wolfgang Wander; Audio Clips Xeno-Canto; Range map Cornell Lab

BLACK & WHITE WARBLERS (Mniotilta varia)

WINTER VISITORS TO ABACO

By no stretch of the imagination are the images below very impressive. Sorry about that. The wonder is that we noticed this little bird at all – also, that it stayed still for long enough for me to get a bead on it. I credit the sharp eyes of Mrs RH (from whom little is hid) for spotting a fleeting movement on a pine trunk along the Delphi drive. Unlike any other warbler, these small birds feed in the manner of nuthatches or tree / brown creepers. They run rapidly up and down tree trunks and branches foraging on insects in the bark with their sharp little beaks.

Summer & Winter Ranges

IUCN status

The next 2 photos (yes, I agree, they’re not very good, nor taken – the top one, anyway – from an elegant angle) are included to demonstrate the remarkable length and dexterity of the bird’s legs. During the minute we watched it before it flew off, we noted this characteristic legs-splayed ‘pausing pose’ several times.