Thick-billed Vireo
Vireo crassirostris
The Thick-billed Vireo (Vireo crassirostris) is a rare shrike-babblers, erpornis, and vireo found in 6 countries, weighing about 13 g. The thick-billed vireo is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers.










About the Thick-billed Vireo
The thick-billed vireo is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found on many islands of the West Indies and as an occasional vagrant to south Florida in the United States.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
How to identify it
The thick-billed vireo is 11.5 to 13.4 cm (4.5 to 5.3 in) long and weighs about 11 to 16 g (0.39 to 0.56 oz). The sexes have the same plumage. Adults of the nominate subspecies V. c. crassirostris have a mostly grayish olive to brownish olive crown, face, and nape with blackish lores, a pale yellow stripe above the lores, and a pale to darker yellow eye-ring that sometimes is incomplete. Their upperparts are grayish olive to brownish olive with a more olive-green rump and uppertail coverts. Their wing coverts are dusky grayish brown with wide white tips that form two prominent wing bars. Voice: The thick-billed vireo's song is a "ubbly, variable chik-didle-wer-chip". Only males sing.
Where it lives
Recorded as a rare visitor in United States.
When to see it
Best months: January, February, March, April, May, September, October, November, December, with peak activity in March. It is a variable species across most of its range.
Easily confused with
Quick questions
- How do you identify a Thick-billed Vireo?
- The thick-billed vireo is 11.5 to 13.4 cm (4.5 to 5.3 in) long and weighs about 11 to 16 g (0.39 to 0.56 oz). Full identification notes are on this page.
- How big is a Thick-billed Vireo?
- The Thick-billed Vireo is a tiny sized bird weighing about 13 g.
- Where can you see a Thick-billed Vireo?
- The Thick-billed Vireo occurs in 6 countries, including the Bahamas, the Cayman Islands, the Turks & Caicos Islands, Cuba and Colombia.
- What birds look similar to a Thick-billed Vireo?
- The Thick-billed Vireo is most easily confused with the Yellow-winged Vireo, the Golden Vireo and the Yucatan Vireo.
- Is the Thick-billed Vireo endangered?
- The Thick-billed Vireo is listed as Least Concern on the IUCN Red List.
Learn the Thick-billed Vireo for real
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