Description wikipedia

The Alagoas tyrannulet (Phylloscartes ceciliae) is a Critically Endangered species of bird in the family Tyrannidae, the tyrant flycatchers. It is endemic to Brazil. == Taxonomy and systematics == The Alagoas tyrannulet is monotypic. It and the bay-ringed tyrannulet (P. sylviolus) appear to be sister species. Dante Martins Teixeira, who formally described the species, called it the "long-tailed tyrannulet". He gave it the specific epithet ceciliae in memory of his late wife Cecelia Torres. == Description == The Alagoas tyrannulet is 11 to 13 cm (4.3 to 5.1 in) long; five individuals weighed 6.8 to 8.4 g (0.24 to 0.30 oz). The sexes have the same plumage. Adults have a thin whitish supercilium and an ashy blackish streak through the eye that continues to the rear and sweeps around the whitish ear coverts. Their crown, nape, back, and rump are dark olive green. Their wings are blackish olive with thin yellowish green edges to the flight feathers. Their wing coverts have wide greenish yellow tips that form two distinct wing bars. Their long tail is blackish with thin yellowish green edges to the feathers. Their throat and breast are whitish with a dark green wash on the sides of the breast. The rest of their underparts are white with a very pale yellow wash on the belly and undertail coverts. Both sexes have a chestnut iris, a black bill, and dark bluish gray legs and feet.