I have decided to get my 21 week old silkie hen a friend, since my silkie rooster is picking on her & she is all alone now. I also have two 16 week old barred rock hens. They have all been raised together & get along fine, but lately my rooster is trying to mate with the silkie and she has been acting weird & not going in the coop at night. So I called the lady who I bought them from and she said she has some 12 week old silkie hens if I wanted one. My question is, should I get one or two? I have room in my coop but only have 3 nesting boxes (right now I have 3 hens) I'm a new chicken owner so I wanted some opinions.