I have a flock of chickens consisting of 6 black stars, 2 silver laced wyndotts, and four Red ones (think they are RIR) and two roosters a banty silky and a mutt. In the last week we have noticed one chicken whos back end lookes broken or out of place, one who clacks when she eats, two that have bald dpots on there heads we asume from packing and one of the chickens broke there neck (we thought was an accident) I noticed our rooster is really mean to some of the girls. He won't let certin ones eat (were pullingthem out and letting them be caged while they regain weight) theirs also a queen chicken who is mean to any other chicken and then theres randy roo who mounts any hen that gets close to him. I don't know if these are just regular chicken problems or if one of the dominant chicken/roo's are just getting too rough. Crystal