I lost 17 chickens to what I think are raccoons. At least one raccoon(?) got in through an enlarged opening in my 2x4 welded wire, where one of the crap welds failed. I fixed that and inspected elsewhere. I set a hav-a-hart trap outside. About five nights later something got into the trap, ate the can of tuna, and chewed its way out of the trap! Really! I had no idea anything that would be small enough to get into the trap would be strong enough to chew the wire apart enough to escape. Can a raccoon do this? Maybe a fisher cat (I've already shot two FCs nearby)? Anyway, gonna go electric, I think. How many joules are needed to repel fishers and raccoons?