I agree, eventually all owners will have to cull one of their birds weather they like it or not, due to illness or injury rather than letting them suffer. If you can't do it with your hands you could also use a small gage gun 22, 17 and you could shoot them in the head as well. For your extra...
Agree with Keesmom. I know they may seem friendly and docile now but keeping 6 cockerels with one hen would not only be a bloody disaster for the males but that poor hen will just get ripped to shreds by all of them. Even keeping one cockerel and one hen isn't enough. I always have at least 5...