Hi! I have two indian runners, and 4 muscovies. The runners are a male & female pair. and I'm 99% sure the muscovies are all girls as they have very little red in their faces. just at the edge of the beak, no where else. I have found some duck eggs recently, and put them in the incubator cause I figured - heck, why not? They are developing, and i saw the runner mount a scovy a couple days ago.. will the cross be born without the ability to be bred later? I heard that because scovys are claw toed, they cant be bred with other ducks or the offspring are infertile.