Ecuadorian Tyrannulet
Phylloscartes gualaquizae
The Ecuadorian tyrannulet is about 11.5 cm (4.5 in) long; one male weighed 8 g (0.28 oz). The sexes have the same plumage. Adults have an indistinct whitish supercilium and eye-ring. Their face is otherwise mostly pale yellow to whitish with an indistinct blackish line around the ear coverts. Their crown is gray and the rest of their upperparts are olive. Their wings are dusky with pale yellow edges and tips on the flight feathers. Their wing coverts are dusky with whitish to pale yellow tips that form two wing bars. Their tail is olive. Voice: The Ecuadorian tyrannulet's day song is "a spitting, almost rattled trill, sp-i-i-i-i-i-i, that at first descends, then ascends, then descends again" and has also been written as "dzEEeerrrrEEerrrrr". Its calls include "a thin feeee" and "high teep and ptip notes".
ID text from Wikipedia, CC BY-SA 4.0
Mottle-cheeked Tyrannulet
Phylloscartes ventralis
The mottle-cheeked tyrannulet is about 12 cm (4.7 in) long and weighs about 9 g (0.32 oz). The sexes have the same plumage, and the subspecies also have essentially the same plumage as well. Adults have a short thin whitish supercilium, an indistinct broken whitish eye-ring, a dusky line through the eye, a wide whitish and dusky crescent below the eye, a dusky "moustache", and the eponymous whitish and dusky mottled cheeks. Their crown, nape, back, and rump are dark olive. Their wings are dusky with bright olive-yellow outer webs at the base of the flight feathers. Voice: The mottle-cheeked tyrannulet's song has been described as "a descending, accelerating rattle tchep tik tik-teer'r'r'r' and its call as "weak, sneezy, metallic tchee or tchep notes". Another description of is song is a "very high, mainly level pitched, twittering trill, which starts hesitantly, accelerates, then slows down at the end with some very sharp, very high notes".
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: Ecuadorian Tyrannulet and Mottle-cheeked Tyrannulet.