We are working on building a pen for our chickens to protect them from a hawk since our top rooster and a hen was killed last week. We still have a little bantam Old English Game rooster. He likes to boss the girls around but hides faster than any of the other chickens. Tractor Supply is having a Chicken Swap this morning and I was thinking about adding a standard size rooster as a protector...Is this a good idea or bad idea? If I decide to do this, it will be the first time we've "added" a chicken to our backyard flock - currently of 12. Other than keeping him separate for a while, do I need to do anything special?