Hello everybody. I was out shooting in a nearby park and found these ducks as part of a group of mallards. I'm inclined to think they are leucistic, but could they be hybrids? The hunting community calls them "blonde mallards". The third one seems to be too dark to be a mallard. I contacted Ducks Unlimited, but they could not identify them. Any help would be appreciated. Thanks.
Rubens
Light-coloured with black beak.
Light-coloured with light brown/tan beak
Mallard? American Black Duck?