Chestnut-breasted Mountain Finch

The chestnut-breasted mountain finch (Poospizopsis caesar) is a species of bird in the family Thraupidae. It is endemic to Peru. Its natural habitat is subtropical or tropical high-altitude shrubland. == Taxonomy == The chestnut-breasted mountain finch was formally described in 1869 by British ornithologists Philip Lutley Sclater and Osbert Salvin from two specimens collected by Henry Whitely. It was originally described in the genus of Poospiza, Greek for poa meaning grass and spiza meaning finch, and was coined as Poospiza caesar. It was later moved into the Poospizopsis genus in 2014 after a molecular phylogeny study of tanagers discovered that Poospiza was a polyphyletic genus, which moved the chestnut-breasted mountain finch and Poospiza hypochondria as a part of genus realignment. The type locality is located in Tinta in the department of Cusco. The species is monotypic: no subspecies are recognised. == Description == The chestnut-breasted mountain finch ranges from 17 to 18.5 centimetres (6.7 to 7.3 in) long, with its wings around 8 centimetres (3.1 in) long. Both sexes look similar, consisting of a gray upperpart with the lore and auricular feathers colored black. They are separated from the crown by a distinctly white supercilium. Its throat is colored white…