I started with 55 chickens in a coop and little by little they started disappearing. I didn't notice it at firstbecause of the many chickens but after a while i noticed. And then I couldn't figure out what was getting them. But every night more and more disappear no matter how much i board up the coop, more and more go missing. I'm down to 20 now and I've almost tank proofed the coop and the killings have stopped but I still want to know what it could have been. There are no bodies or feathers lying around.