A variety of Mallards

A variety of Mallards

Observation - A variety of Mallards. Description: I think the washed out bird is a female because of the slight brown streaking and I'm guessing the pure white bird is a male because of the upcurled tail feathers. Added another view of the beige streaked bird.

I think the washed out bird is a female because of the slight brown streaking and I'm guessing the pure white bird is a male because of the upcurled tail feathers.
Added another view of the beige streaked bird.