Just let my chickens out into the big yard after being cooped up in the chicken yard all winter. My Rooster who is just about 1 now decided he didn't like one of the older hens and started chasing her around the yard. I thought they'd work it out so I let it go on for a while until I noticed she had completely gave up and lied down and he was just pecking and beating the crap out of her. So now he's in the dog house, quite literally, I locked him in the dog house to keep the hen safe as she is now bleeding from her comb and leg... poor thing. As of now he is going to the butcher on Tuesday. Is there any reason to think this behavior is temporary? My last rooster was never aggressive... how I miss him.