Bay-headed Tanager
Tangara gyrola

f6.7 @ 1/125s, ISO:4000, Nikon D3S w 500mm and 1.7X teleconverter

"Bay-headed Tanager," Wikipedia, the free encyclopedia. The bay-headed tanager (Tangara gyrola) is a medium-sized passerine bird. This tanager is a resident breeder in Costa Rica, Panama, South America south to Ecuador, Bolivia and southern Brazil, and on Trinidad. It occurs in forests, particularly in wetter areas. Adult bay-headed tanagers are 14 cm long and weigh 19.5 g. The nominate race T. g. gyrola is mainly green apart from a chestnut head, a blue or green belly, and a thin gold collar on the hind neck. Sexes are similar, but immatures are duller with chestnut-flecked green heads.