Guatemalan Tyrannulet vs Peruvian Tyrannulet

Guatemalan Tyrannulet

Zimmerius vilissimus

Tiny10 gForest

The Guatemalan tyrannulet is 10 to 12 cm (3.9 to 4.7 in) long. The sexes have the same plumage. Adults have a grayish crown and a short whitish supercilium. Their upperparts are olive green. Their wings and tail are mostly olive green with yellow edges on the wing coverts, flight feathers, and tail feathers. Their underparts are mostly off-white with faint darker streaks on the breast and sometimes a pale yellow wash on the belly and undertail coverts. Both sexes have a light brown or brownish black iris, a short brownish black bill, and long brownish black legs and feet. Voice: The Guatemalan tyrannulet's call is "a clear, slightly ringing to plaintive peeu or pyeu". It is assumed to have a dawn song like that of the mistletoe tyrannulet's, which is "a series of notes, the first a slow, dropping syllable and the rest short and rising...yer-de-dee, often followed by a trill".

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) William Stephens, some rights reserved (CC BY), uploaded by William Stephens · cc-by

Peruvian Tyrannulet

Zimmerius viridiflavus

Tiny10 gForest

The Peruvian tyrannulet is about 11 to 12 cm (4.3 to 4.7 in) long and weighs 9 to 10 g (0.32 to 0.35 oz). The sexes have the same plumage. Adults have pale yellow lores and eye-ring and a dark stripe through the eye on an otherwise buff-washed bright olive face. Their crown is darkish olive to grayish olive and their back and rump are bright olive. Their wings are dark dusky with bright yellow-green edges on the coverts and flight feathers. Their tail is dusky olive. Their throat is pale yellow, their breast and flanks olive-yellow with some olive markings, and their belly bright yellow. Voice: The Peruvian tyrannulet's dawn song is "a rising, musical, chiming series tew-tew-tee" and its call "a 1-4 note upslurred hooooeet? or huhu-hu eeet?".

ID text from Wikipedia, CC BY-SA 4.0

Photo: Dan Vickers · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Guatemalan Tyrannulet and Peruvian Tyrannulet.