Fulvous-vented Euphonia

The fulvous-vented euphonia (Euphonia fulvicrissa) is a species of bird in the family Fringillidae, the finches and euphonias. It is found in Colombia, Ecuador, and Panama. == Taxonomy and systematics == The fulvous-vented euphonia was originally described in 1857 with its current binomial Euphonia fulvicrissa. 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 fulvous-vented euphonia has three subspecies, the nominate E. f. fulvicrissa (P.L. Sclater, 1857), E. f. omissa (Hartert, EJO, 1913), and E. f. purpurascens (Hartert, 1901). == Description == The fulvous-vented euphonia is 9 to 10 cm (3.5 to 3.9 in) long and weighs about 10 to 13 g (0.35 to 0.46 oz). It is a small euphonia. The species is sexually dimorphic. Adult males of the nominate subspecies have a small lemon-yellow forehead; the patch extends to just above the eye. The rest of their crown and their face, nape, throat, chest, and upperparts are glossy blue-black. Their flight feathers are dusky with a blue-black tinge. The upper side of their tail is blue-black and…