Blue-backed Tanager

The blue-backed tanager (Cyanicterus cyanicterus) is a species of South American bird in the tanager family Thraupidae. It is the only member of the genus Cyanicterus. It is found in Brazil, French Guiana, Guyana, Suriname, and Venezuela. Its natural habitat is subtropical or tropical moist lowland forests. == Taxonomy == The blue-backed tanager was formally described in 1819 by the French ornithologist Louis Pierre Vieillot under the binomial name Pyranga cyanicterus. The type locality is Cayenne in French Guiana. This species is now the only member of the genus Cyanicterus that was introduced by Charles Lucien Bonaparte in 1850. The word cyanicterus is formed from the Ancient Greek kuanos meaning "dark-blue" and ikteros meaning "jaundice-yellow". The blue-backed tanager is monotypic: no subspecies are recognised. == Description == The blue-backed tanager is, on average, 17 cm (6.7 in) long and weighs 33–36 g (1.2–1.3 oz). It is a striking species, with males having bright blue upperparts and heads down to the breast, with the remainder of the underparts being golden-yellow. The lores are black and the wing coverts are dark. Females have a lighter cerulean coloration, compared to the male's cadet-blue, which is restricted to the upperparts; the underparts are yellow…