We had to cull a hen with a prolapse and a mean roo. My husband did the deed with a hatchet or ax....not a pretty sight. Later we got cornish x chicks. I found some people who were processing 30 birds and went to help and learn. When we were ready to process our meat birds, we got a couple of orange cones from Lowe's, cut the ends off so the opening was big enough and attached them to a board attached to 2 trees. We held the bird upside down by its feet for a minute until it stopped flapping and became very calm, then placed it head down into the cone. Hold the head in one hand with your fingers on and just above the comb, and your thumb on the "chin". Use a very sharp knife and with a quick, smooth flick sever the carotid arteries on each side of the neck. (Hold onto the head for a minute to prevent splatter as the body will jerk around a bit.) Using the killing cones is quicker and easier for us, and I believe it is about as humane as possible.