I processed one chicken for the first time last month and now want to cull two more old hens--at the same time. I am wondering if I can kill them at the same and let one carcass wait while I pluck and process the other. Is this a bad idea? OR, should I kill and process one at a time and then go back out to repeat the process? The reason I ask is that killing is the hardest part. I'd rather go out to the yard just once. Thank you for your responses.