The little ones where all 3 months, he was about 6 months. He has been a great rooster, I been giving him a little freedom the past few days and I guess somehow that just made him mean! Its heartbreaking to have seen that happen though. I am a little discouraged to even get anymore chickens until we get things comfortable. Between losing some other animals and then to see that tonight I am getting a little discouragedYour saying one of your bcm's killed another maran? Oh, wow! I'm so sorry. How old are the little grays? Hope you find the rest. Nothing so discouraging!!