Buff-cheeked Greenlet

The buff-cheeked greenlet (Pachysylvia muscicapina) is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Bolivia, Brazil, French Guiana, Guyana, Suriname, and Venezuela. == Taxonomy and systematics == The buff-cheeked greenlet was originally described in 1873 as Hylophilus muscicapinus. The buff-cheeked greenlet has two subspecies, the nominate P. m. muscicapina (Sclater, PL & Salvin, 1873) and P. m. griseifrons (Snethlage, E, 1907). == Description == The buff-cheeked greenlet is 11.5 to 12 cm (4.5 to 4.7 in) long and weighs 9.5 to 13.5 g (0.34 to 0.48 oz). The sexes have the same plumage. Adults of the nominate subspecies have a gray-brown forehead and a blue-gray crown and nape. They have a buffy supercilium and blackish gray mottled ear coverts on an otherwise buffy-brown face. Their upperparts are greenish that is lighter on the rump. Their wings' primaries and secondaries are dark blackish gray with wide greenish edges on the outer webs. Their tail is dull greenish. Their chin and throat are off-white, their breast grayish buff, their belly grayish white, and their flanks yellowish. Subspecies P. m. griseifrons has a pure gray forehead and a deeper buffy rufous supercilium and face…