Can someone identify these ducks?

Question

I've included a link to some photos of ducks that have been visiting a feeder and birdbath, in NW Oklahoma. Thanks to anyone who can identify them. Sorry the photos aren't better quality, but it was hard to sneak up close to the ducks.

http://good-times.webshots.com/album/565201041vOtAdt

Answer 1

Don't look like any ducks I've seen.  But take a look at this website. Maybe you'll see them.

Answer 2

They are black bellied whistling ducks, and are at the northernmost of their range in Oklahoma.  Go to:http://en.wikipedia.org/wiki/Black-belli... for more information.

Answer 3

Have no ideal, but so cute.

Blackbellied Whistling Duck.

I agree with Lila the one on the bird bath is just like the one in this site.

http://www.birds.cornell.edu/AllAboutBir...