Olive-faced Flatbill

The olive-faced flatbill or olive-faced flycatcher (Tolmomyias viridiceps) is a species of bird in the tyrant flycatcher family Tyrannidae. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. == Taxonomy and systematics == The olive-faced flatbill was described by the English ornithologists Philip Sclater and Osbert Salvin in 1873 from a specimen collected in Pebas, Peru. They coined the binomial name Rhynchocyclus viridiceps. It was long treated as a subspecies of the ochre-lored flatbill (T. flaviventris) but is now considered as a separate species based primarily on its very different vocalization. Taxonomic systems began separating them in 2020 and the process continued into 2024. The olive-faced flatbill has three subspecies, the nominate T. v. viridiceps (Sclater, PL & Salvin, 1873), T. v. zimmeri (Bond, 1947), and T. v. subsimilis (Carriker, 1935). == Description == The olive-faced flatbill is about 12 to 13 cm (4.7 to 5.1 in) long and weighs 11 to 16.4 g (0.39 to 0.58 oz). The sexes have the same plumage. Adults of all three subspecies have an olive head with a faint yellowish supercilium. Their back, rump, and uppertail coverts are olive. Their wings are dusky with yellow edges on the coverts and remiges that…