Hi im new on this site. Need some advice .I have a peking bantam and a white sussex (these are hens) I was given 3 more hens about 6 wks ago they are about 6months old and I have heard in the morning that one is a rooster. They all sleep together in the same house. Do I need to separate the rooster from the other hens. Also i have a 1yr old muscovy duck , will the rooster attack her..