Yellow-backed Oriole
Icterus chrysater

f6.7 @ 1/800s, ISO:2500, Nikon D3S w 500mm and 1.7X teleconverter

"Yellow-backed Oriole," Wikipedia, the free encyclopedia. The yellow-backed oriole is a species of bird in the family Icteridae. Yellow-backed orioles are found throughout Central America and northern South America. In particular, the species is divided into three allopatric populations. One population, designated as the subspecies I. c. giraudii, is endemic to southern Central America, including Nicaragua, Panama, and Colombia. Yellow-backed orioles are a yellow-bodied, sexually monomorphic species. They average 21.5 cm (8.5 in) in length from beak to tail; making it a relatively medium-sized oriole species.[2] Exposed skin and claws are bluish-black; in adults, the bill is black, with the base of the mandible becoming bluish-grey. Adult males display strongly contrasting yellow and black plumage. The wings, tail, shoulders, throat, and face are all black; by contrast, the back and underparts are an extremely bright yellow. Adult females closely resemble males, but yellow parts appear slightly greenish. Despite differences in plumage coloration between sexes, it is likely that this species is extremely difficult to sex in the field.

Ammo Ponds, Gamboa, Panama

02/26/2018