My wife got these from tractor supply. I swear when they were little they had a second black line under the eye which made me think rouen. I also saw a green sheen on all of their heads weeks ago. But now I really only see it on 1. But looking at the bills it looks like 2 and 2. So I'm not sure if they are mallards or rouen and if 1 to 4 drakes. Lol. Any ideas from people who know more than me?
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