I have a lovely Serama pair that have grown up together. They are about 6 months old and the hen just started laying. About 2 months ago, the hen went crazy in the night and ripped out almost all of the poor rooster's tail feathers ( he was left with 3). When I ran out to see what had happened, the hen was as distressed as the rooster and I split them up for the rest of the night and thought the attack was because the ceramic heater had fallen over and scared the hen. They made up and that was that, no other incidents or attacks or any aggression what so ever. Then tonight she did it again (all his beautiful tail feathers had just come back in!!). I can't see any reason for it and it just came out of the blue again. He's a very gentle and attentive rooster, and she's not aggressive at any time except these incidents. They free range in the garden during the day and get quite a high protein food. Anybody able to shed some light on what might be happening and how to prevent it in the future? Thanks!