Orange-bellied Euphonia

The orange-bellied euphonia (Euphonia xanthogaster) is a species of bird in the family Fringillidae, the finches and euphonias. It is found in Bolivia, Brazil, Colombia, Ecuador, Guyana, Panama, Peru, and Venezuela. == Taxonomy and systematics == The orange-bellied euphonia was originally described in 1834 with the binomial E[uphone] xanthogaster. At the time, the genus Euphonia was a member of the family Thraupidae, the "true" tanagers. Multiple studies in the late twentieth and early twenty-first centuries resulted in Euphonia being reassigned to its present place in the family Fringillidae. The orange-bellied euphonia has these 11 subspecies: The orange-bellied euphonia and the tawny-capped euphonia (E. anneae) form a superspecies. The "black-throated euphonia" ("Euphonia vittata") was originally described as a species but is now believed to be a hybrid between the orange-bellied euphonia and the chestnut-bellied euphonia (E. pectoralis). == Description == The orange-bellied euphonia is 9 to 11 cm (3.5 to 4.3 in) long and weighs 9 to 16 g (0.32 to 0.56 oz). It has a thick stubby bill. The species is sexually dimorphic. Adult males of the nominate subspecies E. x. xanthogaster have a deep yellow forehead; the patch extends to well beyond the eye. The rest of their head…