Thick-billed vireo

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Thick-billed vireo
Thick-billed Vireo.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Vireonidae
Genus: Vireo
V. crassirostris
Binomial name
Vireo crassirostris
(Bryant, 1859)

The thick-billed vireo (Vireo crassirostris) is a small songbird. It breeds in the West Indies in the Bahamas, Turks and Caicos Islands, Cayman Islands, Tortuga Island in Haiti and on cays off the coast of Cuba. It occasionally can be found as a vagrant to south Florida in the United States. The subspecies V. c. approximans of Providencia Island is sometimes treated as a subspecies of the mangrove vireo (V. pallens) or as a separate species, the Providencia vireo.

This vireo frequents bushes and shrubs in tropical thickets. The grass-lined nest is a neat cup shape, attached to a fork in a tree or bush branch. 2-3 dark-spotted white eggs are laid. Both the male and female incubate the eggs.

The thick-billed vireo is approximately 14 cm in length. Its head and back are a greyish olive, and the underparts are buffy white. The wings and tail are dark, and there are two white wing bars on each wing. The eyes have dark irises. Sexes are similar.It shows a yellow partial spectacle just above the bill.

The thick-billed vireos song is a variable and rapid six to seven note phrase, starting and ending with a sharp chick, very similar to the white-eyed vireo, but slightly harsher in sound.

The diet of this species consists almost exclusively of insects.


  1. ^ BirdLife International (2012). "Vireo crassirostris". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.