The breeding male is unmistakable, with a green head, black rear end and blue speculum feathers edged with white.
12.
Females are much duller than males and are mainly brown, often with pale feather edges giving them a scaled or speckled appearance.
13.
Above dusky, all the feathers edged with reddish brown; wings dusky, the primaries edged with brown, as are the wing coverts and the tail feathers.
14.
The adult male has a black eye mask, thin black throat line, black tail and black wings with a white wing bar and some white feather edging.
15.
In these, the land of the lower strake is tapered to a feather edge at the end of the land where it is supported by the rebate formed by the apron.
16.
Immature birds of both sexes usually show some gray or buff feather edges on the head and wings and are mottled with cinnamon to rusty brown along the edges of the white breast-belly stripe.
