Dusky-tailed Flatbill

The dusky-tailed flatbill (Ramphotrigon fuscicauda) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. == Taxonomy and systematics == The genus Ramphotrigon was long thought to be closely related to genera Tolmomyias and Rhynchocyclus, whose members also have wide bills. However, studies published in the early 2000s found that it is more closely related to genus Myiarchus. The dusky-tailed flatbill is monotypic. == Description == The dusky-tailed flatbill is 15.5 to 16.5 cm (6.1 to 6.5 in) long and weighs about 16.5 to 20.5 g (0.58 to 0.72 oz). The sexes have the same plumage. Adults have a dark olive crown, grayish lores, and a thin yellow-green line behind the lores and under the eye on an otherwise dark olive face. Their upperparts are mostly dark olive with slightly lighter uppertail coverts. Their wings are mostly fuscous-black with thin buffy olive edges on the primaries and old gold edges on the secondaries and tertials. Their wing coverts have wide rufous brown or cinnamon edges that show as two wing bars. Their tail is brownish fuscous-black with thin buffy citrine edges on the feathers. Their throat and upper…