Yesterday we let our chickens out which they love and then I heard the dog whining and went our and there were feathers everywhere! We called and finally the hens started coming back and the rooster came back but all his back feathers are gone and he has a cut on his back. I put wound spray on it but he is really a mess. One of the hens is missing, we didn't hear anything even the chickens didn't make their distress noises. What do you think it was, it was in the late afternoon. Thanks!