I have 2 bantam roosters (which are very very small and were suppose to be hens) and I was wondering how many hens is the best amount for them. We already have 4 hens and want the smallest amount possible. Also we wanted 2 girl ducks but i think we have 1 drake. What is the smallest amount of girls should we get for him we already have 1. Side note we are not going to re home any of our animals.