Favoritos de tristanmcknight

I think this is a Mexican duck: olive yellow bill on “female” mallard color during breeding season, no curly tail feathers, color distinction between head and body. Though it looks like there’s a little mallard introgression in the hint of green to the dark marks on the head and fairly white tail. Should I call it a hybrid?
The last picture (with the female mallard and a Muscovy duck) is included because I liked seeing the contrast between the true mallard and the Mexican.

Tentative id based on the red toes, tibias and black femurs. These fell on the ground. A female with a male and a third attempting to join. There was a Polistes wasp caught up in the frenzy, but was dead by the time they all hit the ground. Maybe hinei instead of rufipes?