Friday, 7 January 2022

[cobirds] Mexican duck Id help

I'm not home in CO at the moment but I have tried to id Mexican Duck a few times on the front range so please excuse the general question about a possible id in AZ.
Would there be any iridescence on the dark mantle of a male Mexican Duck? It was subtle just in the back of the head. Perhaps that is indicative of intergrade?
The other field marks were there though I didn't look at the tail.

Thanks
Ron Bolton
Berthoud

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