What are my ducks? And how old?

[tinkrcow]

Hello new to raising ducks, have raised chickens for five years now. We bought four ducks from the tractor supply last week two are obviously much older than the other two. How old do you think they are? And what breed do you think I have? I was doing some research, and believe the chocolate ones are either khaki Campbell’s or chocolate runners. The two younger one I believe our mallards?

 

[Isaac 0]

Khaki Campbells and Rounens!

Mallards only have one stripe across the eye while Rouen's will have two or one and a half, Chocolate Runners have a more upright appearance than Khaki Campbells, yours have pretty normal posture.

 

[Isaac 0]

Sorry, I didn't see you asked how old they were. I'd say three weeks.

 

[tinkrcow]

Thank you!!