Hyacinth Visorbearer

Hyacinth visorbearer males are 8.1 to 9.9 cm (3.2 to 3.9 in) long and weigh 3 to 4 g (0.11 to 0.14 oz). Females are 8 to 9.7 cm (3.1 to 3.8 in) long and weigh 2.7 to 3.8 g (0.10 to 0.13 oz). In addition to being longer overall and heavier than females, males also have longer wings and tail. Both sexes have a short bill, but that of the male is longer. Males of the nominate subspecies have a shiny golden green forehead; the rest of the upperparts and the tail are bronze-green. Voice: The hyacinth visorbearer's song is a "series of high, dry 'tjic', 'whi', 'zuzu', and other notes." Only males sing, usually from two or three perches within their territories. Both sexes make a variety of calls in response to threats.