Thick-billed Vireo is a Caribbean endemic, being restricted to The Bahamas, the Caymans, the Turks and Caicos, two islands off of Cuba and one off of Haiti (though it has been reported in Florida). It is most widespread in the first-named archipelago, where it is the only resident vireo. Six subspecies are recognized. All of these are fundamentally olive-green above, with an obvious yellow supraloral, two white wing bars, and whitish to yellowish underparts (see video of bird in hand). It prefers xeromorphic habitats, although it does occupy every available habitat. Thick-billed Vireos can be very tame, even without playback of their vocalizations.