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
Connecticut Warbler
Oporornis agilis
These medium-sized warblers measure 13–15 cm (5.1–5.9 in) in length, with a 22–23 cm (8.7–9.1 in) wingspan. Connecticut warblers weigh 10 g (0.35 oz) when they fledge, attaining an average weight of around 15 g (0.53 oz) as adults. However, birds preparing for migration pack on more weight to survive the strenuous journey and can weigh up to 25 g (0.88 oz). This species has light yellow underparts and olive upperparts; they have a light eye-ring, pink legs, a long tail, and a thin pointed bill. Males have a grey hood; females and immatures are more brown and have a whitish throat. Voice: The song of this bird is a loud repeated cheepa-cheepa. It's "similar in pitch to the Kentucky warbler and the Ovenbird". The call is a nasal pitch, it sounds like a raspy "witch". Like many songbirds, its song is heard during the breeding season but rarely during the fall.
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 Connecticut Warbler.