One of my chickens had a lot of poop on her and I saw she wasn't looking so well for a few weeks. Her comb was discolored and droppy. I held her upside down by her legs and saw that there were maggots on her vent eating her alive. When I turned her back up, she was dead. Could I have killed her by hanging her upside down. It was only about 30 seconds.....could that have shocked her into death or can chickens not breathe when they are held like that. I usually dust my chickens for mites that way, but now I am worried.