Choco Sirystes

The Choco sirystes (Sirystes albogriseus), formerly known as the western sirystes, is a species of passerine bird in the tyrant flycatcher family Tyrannidae. It is found Colombia, Ecuador, and Panama. == Taxonomy and systematics == The Choco sirystes was formally described in 1863 by the American amateur ornithologist George Newbold Lawrence under the binomial name Lipaugus albogriseus, mistakenly placing it with the cotingas. Lawrence did not mention a type locality but Osbert Salvin and Frederick DuCane Godman, in their book Biologia Centrali-Americana, reported that the specimen had come from "Lion Hill". This was a railway station in the Panama Canal Zone that was submerged when the Gatun Lake was created. It was later moved into genus Sirystes that was introduced in 1860 by the German ornithologists Jean Cabanis and Ferdinand Heine. By the 1930s what is now the Choco sirystes was generally treated as a subspecies of S. sibilator, at that time called simply "sirystes" and now called the sibilant sirystes. By the beginning of the twenty-first century it was again treated by some authors as a full species, the "western sirystes". As a result of a study published in 2013, "sirystes" was split into four species, one of which…