I was at Lake Sammamish State Park today (for the first time) checking out the roosting herons and got the following pictures of a couple of ducks:
http://www.flickr.com/photos/35869705 at N05/

I'm assuming that they're some sort of domesticated duck or a Muscovy x Mallard, but wanted to see if anyone had any other ideas.

Thanks,

Chris Johnson
Kirkland, WA
chrisbirdseattle at yahoo.com