I would like to get some more chicks this spring. I have had a flock for a year now. I tried to add two 4 month old chickens to my flock and they attacked them. They would be fine when the birds were not cooped up but when they would go in for the night they would peck them. Then one time when I could not let them out and was at work they pecked my one bird to the flesh on her back. she then became crippled and ended up dying. The one is terrified of the flock! screams when they come near or never comes out of the roost unless they are out and about, then she will come out. So with that....I am scared to get more chicken. I am not sure on how to introduce them with out them getting killed or turning into scared birds. Any advice?