Choco Vireo

The Choco vireo is about 12.5 cm (4.9 in) long and weighs about 11 to 11.5 g (0.39 to 0.41 oz). The sexes have the same plumage. Adults have an olive crown, a yellow buff to dingy yellowish supercilium, white arcs above and below the eye, a dusky stripe from the lores through the eye, and yellow-buff ear coverts. Their nape and upperparts are olive that becomes brighter by the rump. Their wing coverts are dusky gray with wide white tips that show as two wing bars. Their primaries and secondaries are dark brown with thin yellow-green or white edges. Voice: The Choco vireo's typical song has about ten syllables, lasts about 2 seconds, and has a three-part structure. The species sings year-round, typically from a perch in the forest canopy.