Slaty-headed Tody-Flycatcher

The slaty-headed tody-flycatcher, or slate-headed tody-flycatcher, (Poecilotriccus sylvia) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Belize, Brazil, Colombia, Costa Rica, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Venezuela, and possibly French Guiana. == Taxonomy and systematics == The slaty-headed tody-flycatcher was originally described in 1806 as Todus Sylvia. It was later moved to genus Todirostrum. Following a 1988 publication, taxonomic systems moved sylvia and several other species from Todirostrum to genus Poecilotriccus. By the early twenty-first century genus Poecilotriccus had species called both "tody-tyrant" and "tody-flycatcher" so taxonomic systems began renaming the "tyrants" to "flycatcher". The slaty-headed tody-flycatcher shares genus Poecilotriccus with 11 other species. The slaty-headed tody-flycatcher has these five subspecies: P. s. schistaceiceps (Sclater, PL, 1859) P. s. superciliaris (Lawrence, 1871) P. s. griseolus (Todd, 1913) P. s. sylvia (Desmarest, 1806) P. s. schulzi (Berlepsch, 1907) Subspecies P. s. schistaceiceps was originally described as a full species and at least one twentieth century author retained that treatment. == Description == The slaty-headed tody-flycatcher is about 9 to 10 cm (3.5 to 3.9 in) long and weighs 6.7 to 8.5 g (0.24 to 0.30 oz). The sexes have the same plumage.…