Were you wanting a pair? actually if you have 2 ducks then getting a drake would be better because 1 duck to 1 drake would be hard on the duck. Anyway you should know for sure in a few weeks. Happy Thanksgiving!They are 10 weeks old. I thought the white one was a drake because it is a pound more then the dark one. It also got a big chest. I guess I just got a big fat female muscovy.