I have 4 ducks, I'm pretty certain one is an Indian Runner, she stands at attention, it looks like my black one is as well. I have a big yellow one with a hair do, I don't know the difference between the Pekins and the Crested ducks. And that black one I think is a Runner has hair on his head too. And the last one is either a Mallard or a Rouen I've been trying to look at pics to see if I can tell the difference. I don't know how to load videos on here so if someone will go to my facebook and see the video I took last night while they were swimming in my bath and see what you come up with, that would be great! www.facebook.com/Nickole.Goit Thank you in advance, also any guesstimates on ages? I was told 4 weeks but the Pekin? is twice the size of my yellow Runner Thanks Again!