Great Argus 12 Jul 2020 Mallard, but an eclipse plumage male, not a female. The key is the yellow bill. Male American Black Duck also has a yellow bill, but would be darker bodied with not so much rust in front.
Mallard, but an eclipse plumage male, not a female. The key is the yellow bill. Male American Black Duck also has a yellow bill, but would be darker bodied with not so much rust in front.
