This looks "off" for an American Wigeon.
Yes, it looks most like a Wigeon due to:
- Short bill, mostly gray
- Gray head with fine patterning
But there are some things that strike me as odd:
1. The amount of patterning on the sides and back of the bird
2. Head looks less 'dainty' than typical
3. Bill color isn't the typical light gray with dark tip, but appears to have some pinkish hue to it?
What do I think it is? I suspect it's a hybrid Wigeon x something (Mallard?) But I hope for others to comment. Perhaps I'm just unfamiliar with this plumage of a Wigeon.
Edit: perhaps this is simply a young Mallard with a stubby bill?