"Mallards hybridize with black ducks and mottled ducks, complicating identification in some regions."
Complicating identification?! Hah! I have a difficult time identifying ALL ducks (and all birds, for that matter!) in ALL regions! Oh well, that's what makes birding so fun and exciting. You never know what is going to be waiting for you around the corner.
(Photos taken at Colusa NWR.
Frustration taken out on a quarter-pounder with cheese on the way home.)