Hi, I have a cockerel which I hatched from an egg. We have four hens one of which I hatched too. He is very aggressive when you pick up a hen. Also, when I caught an escaped hen a put her back in the run, he went crazy and started chasing the hen around the run. He is still quite young and is about 9 months old. Will he grow out of it? He's bigger than the average cockerel and is quite scary now.