I purchased a pair of black OEG bantams yesterday. I brought them in after dark, so I put them in their new coop and put in the BB Red hen I already had. When I went down to feed and water them this morning, I found my BB hen scalped. He tore her poor little head to pieces. I have two more young pullets I want to put with him, but I can't have that happening agian. What is the rule to adding new games to a pen? Help!