we had a flock of 10 hens and one rooster, well the night before last one hen passed away and my boyfriend found her early yesterday morning and decided to let the rest out into the fenced in area around the coop earlier than usual.. when i went to check on them a few hours later four were in the fenced in area but had been killed (there were two holes dug under the fence) and one was missing so we lost a total of 6.. we still have 4 hens and the rooster.. well the rooster seemed ok yesterday walking around but wasnt crowing like he normally does and had some blood on him but didnt seem to be injured.. but when i went out there this morning to let them out of the coop he was still in the back where they roost and stood up and spread his wings when he saw me (he is sometimes aggresive towards me) but then laid down and wasnt crowing or coming out, was just wondering if he was upset or might be injured?