Golden-winged Cacique

Male golden-winged caciques are about 21 cm (8.3 in) long and females about 19 cm (7.5 in). Males weigh about 35 to 47 g (1.2 to 1.7 oz) and females about 30 to 34 g (1.1 to 1.2 oz). The sexes have the same plumage. Adults are almost entirely black. Their lower rump and their median and inner greater wing coverts are bright yellow. They have a pearly white to yellow iris, a pale bluish gray bill, and black legs and feet. Juveniles are duller overall than adults and have dark eyes. Voice: Male golden-winged caciques display on a perch by singing and "bowing". Their song is an "unexpected and varied, musical rrrreee-chiroo, whooo, tooweetooweetoowee-teeeeay (very high-pitched) whooweet, whooway, teeoo...". Its calls include a "mewing eyehh or thin, slightly upslurred whee".