Hey! I have 2 Rouen ducks. Ones a male and one is a female. I also have a pekin female. I just put my pekin in the coup with my 2 rouens and the male kept pulling her neck feathers and putting his neck over hers. I put him in a separate coup so that the 2 females can get used to each other. Is that normal for the male to act that way? Should I keep him in there? Help!! TIA