Ask A Scientist© Biology Archive

 
name         jim
status       other
age          40s

Question -   I live in ontario there is a duck that looks like a male
mallard overwintering here its entire body is the same green color as a
mallard's head .A Gallinule ? A genetic mutation?
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A purple gallinule is a possibility, the only one that even comes close,
though it seems unlikely they would overwinter in Ontario, and they have
bright red-orange bills.
J. Elliott
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