I had a hen with a horrible egg sack prolapse with no hope of recovery (she finally gave up, stopped eating, and made a heart wrenching clucking sound nonstop). After reading this thread and others, I de idea on a 22 point blank. There was no way I could slit the throat and rip off the head like in the treehugger link posted. Big mistake. I chose the "no fail" rat shot method and it jammed or something and just bloodied her temple. Retry with regular hollow point now that she is disoriented. Straight through the eyes, walk away, come back 20 minutes later and she's still breathing. Omg. Had to send DH to finish her off. Felt so awful for the pain and suffering i caused. I'm going straight out for an ax tomorrow morning to keep on hand just in case i ever have to do this again. The look on her face as she stared at me before the second shot. Nightmarish