I have a pair of pie call ducks and i have two grey males and one mixed breed female. Today when i put the pair in with the others all three male chased my pie female and started to attack her to breed. Then the males started fighting of who could be with her is there something i can do. I have the pair by them self again but i will have to put them back together after breeding season is done. Is it because i have to many males to females?