Is my duck a Mallard or a Rouen?

[northernlivie]

Hi all, I am new to having ducks, just wondering if Delilah is a Mallard or a Rouen because I cannot tell after reading through the forum.......I thought she was a mallard because the fellow I got her from said she was. Pictures below! Thanks!

D taking a jacuzzi



D is the one behind, when I put her on the pond in June this year



Three weeks ago when we still had open water

 

[HollyDuckFarmer]

We need Desert Darlene or Clint... But I *think* a Mallard has 1 eye stripe, a Rouen has 2.

 

[cymbaline]

Size is the main difference, in my opinion. A full grown Mallard will be between 2.5-3.5 lbs; a Rouen would be more like 8-10 lbs. To put it in perspective, the bodies of my Mallards (not including heads) are mostly not much bigger than a football. Out of curiosity a while back, I brought two of my boys in and weighed them - you weigh yourself holding the duck and then not holding the duck and subtract - so if you want to try that you could see how much yours weighs and classify from there.

 

[RouenDuck]

It looks like a Rouen to me but I'm no expert.

 

[northernlivie]

Thanks all, she is definitely not that huge (8-10 pounds) I will do a weigh in tonight.