About the Dwarf Vireo
The dwarf vireo is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is endemic to Mexico.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
The dwarf vireo is 10 to 11 cm (3.9 to 4.3 in) long; two individuals weighed 9.2 and 9.4 g (0.32 and 0.33 oz). The sexes have similar plumage. Adult males have a bluish gray crown and adult females an olive crown. Both sexes have grayish white lores and a grayish white eye-ring with a gap above the eye on an otherwise grayish olive to olive face. Their upperparts are grayish olive to olive. Their wing coverts are dusky with grayish white tips that form two wing bars. Their flight feathers are dusky with pale olive gray edges. Voice: One description of the dwarf vireo's song is "rich to slightly scratchy, hurried warbling phrases, often prolonged, and short, scratchy, warbled phrases, whee chi-a-wee wee-chi, or wee ch'wee wee chir'-awee, or wi chee'r ch wit, etc.". Its calls include "a short, dry dri-dri-it or chi-chi chi-chi-chi,...a gnatcatcher Polioptila-like mewing meearr-meear, and a scolding cheh-cheh...or jeh-jeh-jehr".
Text from Wikipedia, licensed CC BY-SA 4.0.
Where it lives
When to see it
Peak activity in March · a variable species across most of its range
Easily confused with
Flat-billed VireoVireo nanusThe flat-billed vireo is 12 to 13 cm (4.7 to 5.1 in) long and weighs about 10 to 11 g (0.35 to 0.39 oz).
San Andres VireoVireo caribaeusIt is a small bird, 12.5 cm in length.
Blue Mountain VireoVireo osburniThe Blue Mountain vireo is 12.5 to 15 cm (4.9 to 5.9 in) long and weighs about 20 to 22 g (0.71 to 0.78 oz).
Learn the Dwarf Vireo for real
BeakBrain drills you on photos and calls until you can greet this bird by name in the field. Free to play, on any device.
Play BeakBrainEvery photo and recording on this page is credited to its author under the licence shown. Spotted a problem with this page, or have a better photo? Contribute.