Hello, Hoping someone might be able to help with my confusion on this. I have both mallards and moscovies together. They use to be seperate but somehow the muscovies just kept getting in with the mallards so in the end i left them. I have heard that in the interbreed between the two breeds it will produce mules. However my question is..... Are they only mules when its the drake muscovy copulates with the female mallards. ? I had heard if the drake mallard copulates with the female moscovies their offspring won´t be mules. so confused and now worried i might be getting mules next week from a broody chicken that is sitting on duck eggs.