Description wikipedia

The white-throated tyrannulet (Mecocerculus leucophrys) is a species of bird in subfamily Elaeniinae of family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela. The white-throated tyrannulet is 11 to 14 cm (4.3 to 5.5 in) long. The sexes have the same plumage. Adults of the nominate subspecies M. l. leucophrys have a dark olive-gray crown and nape. They have white lores and a thin white supercilium on an otherwise dusky face with some white on the ear coverts. Their upperparts are medium olive-gray. Their wings are brownish black with cinnamon-buff to yellowish buff edges and tips on the flight feathers. Their wing coverts have cinnamon-buff tips that show as two wide bars on the closed wing. Their tail is dusky brown. Their throat is white which extends past the ear coverts; the feathers are puffy. They have a vest-like band of gray on their breast; the rest of their underparts are medium yellow. Both sexes of all subspecies have a dark brown iris, a long black bill, and black legs and feet.