These ducks were sold to me as Rouens, but they don't all seem to be maturing as such. I think the green headed guy (Leonard) is a Rouen, and at least one of the hens (do you call them hens in ducks?) is, but what are the others? Their heads are more brown with hints of mossy green and their wing patches are a dull mossy colour too. They were born some time in May I believe. This is Bernadette - pretty sure this is a Rouen hen, in the background you see two other drakes (Raj/Howard) that don't appear to be Rouens. This is Howard - what is he? You can see he's starting to get a white neck ring, but his head is not green Leonard's (upper corner) is. Bernadette is on the left in the photo. This is Penny, another hen. She has the same markings as Bernadette, but in a much paler version. Is she a Rouen? This is Leonard - quite sure he is a Rouen. Here you see Penny, Leonard, Bernadette and Raj - the latter is also questionable - Rouen or ?? He has the same mossy brown head as Howard. I have more photos if these don't illustrate the differences. Anyone know what these are?