Black-throated Blue Warbler
Distribution / Range
These birds migrate to islands in the Caribbean and Central America. They defend their territory against other birds of the same species for both nesting and winter habitats. The Black-throated Blue Warbler is a very rare vagrant to western Europe.
As this bird requires large, unbroken forest areas for nesting, its numbers are declining.
Adult males have white underparts with black throat, face and flanks; the upperparts are deep blue; immature males are similar with upperparts more greenish.
Females have olive-brown upperparts and light yellow underparts with darker wings and tail, a grey crown and a brown patch on the cheek.
All birds have a small white wing patch which is not always visible, and a thin pointed bill.