I have 18 bobwhites in a 4x8 cage. There is 7 males and 11 females (I know I shouldn't have that many males together) Recently the males have been fighting a lot. There are 4 dominant males and they keep on scaring the other 3 into the nesting boxes and won't let them come out even to eat or drink. If they do go out they just get chased back in. Any ideas on what I should do?