Black-crested Warbler
Myiothlypis nigrocristata
The black-crested warbler is about 13.5 cm (5.3 in) long and weighs about 11 to 20 g (0.39 to 0.71 oz). The sexes have the same plumage. Adults have a narrow black crown stripe, a wide yellow supercilium, a black stripe through the eye, a yellow crescent under the eye, and olive-green cheeks and ear coverts. Their nape, upperparts, wings, and tail are olive-green. Their throat and underparts are yellow. They have a dark iris, a blackish bill, and orange-yellow legs and feet. Juveniles have a dusky olive-gray head and upperparts and pale buffy-olive underparts. Their bill is paler than adults'. Voice: One description of the black-crested warbler's song is "a few sharp, sputtering notes accelerating gradually into fast, rattling that rises, tsuk, . tsuk, tsweettweet-tueet-ueet'eet'et 'et'et't't't" and is sometimes repeated many times with short pauses between. Its call is "a loud chit".
ID text from Wikipedia, CC BY-SA 4.0
Flavescent Warbler
Myiothlypis flaveola
The flavescent warbler is about 14.5 cm (5.7 in) long and weighs 9 to 16 g (0.32 to 0.56 oz). The sexes have the same plumage. Adults of the nominate subspecies have an olive-green crown, a yellow supercilium that becomes olive-yellow past the eye, a dusky stripe through the eye, a yellow crescent under the eye, and yellow cheeks and ear coverts. Their nape, upperparts, wings, and tail are olive-green. Their throat and underparts are yellow. They have a dark iris, a blackish bill, and orange-pink legs and feet. Subspecies M. f. Voice: The song of the flavescent warbler's nominate subspecies is a "double-voiced series, basically an extr. high series of 5-6 fififi-fififi- notes; after the 1st two notes, mid-high tjeh-tjeh-ejeh-tjeh is interwoven". That of M. f. pallidirostris is "sharp, jerky, and delivered quickly, ek, Ease-a Ease-a, E, chéw-chéw-chéw or seeka-seeka-SEETA, chew-chew-chew".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black-crested Warbler and Flavescent Warbler.