Black-whiskered Vireo
Vireo altiloquus
The black-whiskered vireo is 15 to 16.5 cm (5.9 to 6.5 in) long. The nominate subspecies V. a. altiloquus weighs an average of 18 g (0.63 oz). The sexes have the same plumage. Adults of the nominate subspecies have a bluish gray forehead and crown with a buff-olive tinge, a buffy whitish supercilium from the bill past the eye, a wide dusky stripe through the eye, and the eponymous black "whisker" on the sides of the throat. Their nape and upperparts are olive-green. Voice: Migratory black-whiskered vireos sing during the breeding season and are silent on the wintering grounds. Nonmigratory populations sing year-round but more frequently during the breeding season. In the West Indies the black-whiskered vireo sings monotonously throughout the day, "hort, melodious 2- to 3-syllable phrases, each different, separated by pauses".
ID text from Wikipedia, CC BY-SA 4.0
White-bellied Erpornis
Erpornis zantholeuca
In its coloration, morphology and acrobatic habits, this bird resembles a vireo quite a lot. However, it has a prominent crest like many yuhinas, which together with the unusual biogeography has served to obscure its true relationships for a long time. The crested head, back, wings and tail of this bird are olivaceous or golden brown while the underparts are white. Erpornis possesses well-developed musculature for gaping or opening the bill forcefully and may use this to pry bark from trees to seek insects.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black-whiskered Vireo and White-bellied Erpornis.