OK guys, you're getting good at this now- so try this one :)
For advice about Birding, Identification,field guides, binoculars, scopes, tripods, etc - put 'Birding Tips' into the search box
It's a duck and that is the extent of my duck knowledge!!!
I've learned that I still have a lot to learn...
http://www.flickr.com/photos/bramble67/
If we are close, maybe a rare cousin of one of the suggested species? How about a female blue-winged teal?