Yellow-billed duck
Appearance
The rich yellow bill with a black saddle on the upper mandible is distinctive. From a distance the plumage appears dark, but less so than that of African black duck. In flight, it shows a blue-green speculum narrowly edged with white.
Juvenile is duller than adult.
Habitat
Virtually any area of open fresh water, as well as estuaries; often in flocks.
Call
Male gives a rasping hiss, female quacks.

Names
(en) Yellow-billed duck
(sc) Anas undulata
(nl) Geelbekeend
(af) Geelbekeend