I have light Brahma chicks that I got about a week ago. I handle them every day and they ate still very much against handling. They kick and attempt to peck. None of my other chicks have acted like this. In the brooder they are very aggressive towards each other. They were originally in the brooder with BR chicks until they pecked all the feathers and a good deal of flesh off the head of one BR. What do I do with these nasty chicks?