Is this wise? He's been in with the same four girls for about 3.5 months, but we'd like him to fertilize the eggs of our five girls from the other coop. Is he likely to just get picked on, or does being a rooster grant him any privileges in that respect? Any hints on doing this, if you think it's okay? Oh, and the rooster in question is a little over 6 months old, a sweet-tempered and somewhat shy Barred Rock. We've tested eggs from the girls he's in with and found them to be fertile.