Blue-billed Duck
Oxyura australis
Summary 2
The Blue-billed Duck (Oxyura australis) is a small Australian stiff-tailed duck, with both the male and female growing to a length of 40 cm (16 in). The male has a slate-blue bill which changes to bright-blue during the breeding season, hence the duck’s common name (see photo). The male has deep chestnut plumage during breeding season, reverting to a dark grey. The female retains black plumage with brown tips all year round. The duck is endemic to Australia's...
Sources and Credits
- (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Oxyura_australis
