White-bellied Pygmy Tyrant

The white-bellied pygmy tyrant or white-breasted pygmy-tyrant (Myiornis albiventris) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Bolivia, Ecuador, and Peru. == Taxonomy and systematics == The white-bellied pygmy tyrant is monotypic. However, one author has treated it as a subspecies of the eared pygmy tyrant (M. auricularis); major taxonomic systems retain it as a full species. The white-bellied pygmy tyrant was originally described in 1894 as Orchilus albiventris. == Description == The white-bellied pygmy tyrant is about 7 cm (2.8 in) long and weighs about 5 to 6 g (0.18 to 0.21 oz). It is a very small, large-headed bird. The sexes have the same plumage. Adults have a buff whitish area surrounding the eye with a grayish crescent behind the ear coverts. Their crown is bright olive with a brown tinge and their back and rump are bright olive. Their wings are dusky with bright olive-yellow edges on the flight feathers and tips of the coverts; the latter show as two indistinct wing bars. Their tail is dusky. Their throat and upper breast are whitish with faint gray streaks and the rest of their underparts are white with a tinge…