Peruvian Tyrannulet
Zimmerius viridiflavus
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
Slender-footed Tyrannulet
Zimmerius gracilipes
The slender-footed tyrannulet is 9 to 12 cm (3.5 to 4.7 in) long and weighs 6.6 to 9.5 g (0.23 to 0.34 oz). The sexes have the same plumage. Adults of the nominate subspecies have a gray forehead and crown. They have a thin whitish supercilium that starts at their lores and a dark stripe through the eye on an otherwise yellowish white face. Their back and rump are dull olive. Their wings are dusky with thin yellow edges on the coverts and inner parts of the flight feathers. Their tail is dusky olive. Voice: The dawn song of the slender-footed tyrannulet's nominate subspecies has been described as "a soft, querulous, semimusical 'peeu, tri-ri-ri' " and its call as "an inflected 'tuwee?' ". Another author described them similarly as "a rising musical chatter" tew-tui'i'i tew-tui'i'i" and "a mewing, rising huee". The dawn song of subspecies Z. g.
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: Peruvian Tyrannulet and Slender-footed Tyrannulet.