Could be a cross between a black (duck) and a mallard. That could account for the greenish yellow bill and the coloration of the neck and head feathers. A black drake's bill is greenish/yellow. The coloration is much more mallard hen than black duck, IMO. But, you never know how those crosses come out.

Here's my black drake for comparison. The bill is actually much more greenish than it appears in this pic.



SRH

Last edited by Stan; 11/06/18 06:09 PM.
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