Yellow-collared Chlorophonia

The yellow-collared chlorophonia (Chlorophonia flavirostris) 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 yellow-collared chlorophonia was originally described in 1861 with its current binomial Chlorophonia flavirostris. The genus Chlorophonia was long placed in the family Thraupidae, the "true" tanagers. Multiple studies in the late twentieth and early twenty-first centuries resulted in its being reassigned to its present place in the family Fringillidae. The yellow-collared chlorophonia is monotypic. == Description == The yellow-collared chlorophonia is a chunky, short-tailed, stubby-billed bird. It is about 10 cm (3.9 in) long and weighs about 11 to 12 g (0.39 to 0.42 oz). The species is sexually dimorphic. Adult males have a shiny emerald-green head with a conspicuous yellow eye-ring. Their throat and upper breast are the same green. Together they are bordered by a wide yellow collar with a thin chestnut line between the two colors on the side of the breast. Their mantle, back, upperwing coverts, and tail are shiny emerald-green and their rump and uppertail coverts bright yellow. Most flight feathers are dusky with green edges; their tertials are green. The center of…