Thanks for all your input. They have been fighting over their favorite boy duck, one even has a bald patch in the front neck area where they grab on to wrestle. when I read about the green bill I was worried that maybe they were actually boys and the fighting was for a too-many-boys reason...
I have 3 blue swedish ducks (out of six total ducks) they are supposed to be female they all SOUND like females. but one has an olive green bill and another has a greenish blue bill and they both have sort of green flecks of irridencent feathers on their heads. I read that Drakes have green...