it’s not the easiest thing to do from what I’ve read, and for 20 birds at a time... I’ll just stick to ending them as they become hostile to each other.
That's true it takes some practice to master the art of caponizing. Now I can caponize a cockerel in less than two minutes, but when my father was teaching me the skill I was very nervous. I said that I may kill a few of them, he said "dont worry we will have a chicken dinner tonight" then I said that I may kill far too many, he said "we will invite the village."
We have a breeding operation on our farm so we cannot afford having culls and barnyard mutts running around. So it is a good thing that I learned.