Remember all "rehoming" does is make the little guy somebody else's problem. Do everyone that a favor and kill it when you catch it. If it killed your chicken it will find a way to get another easy meal somewhere at the next coop it comes across. They are not endangered. Just toss the trap in a garbage can full of water and come back in an hour. Easy and humane. Drowning just feels like you are falling asleep. (So says my dads friend that drown as a kid and was revived.) good luck getting the little guy they are smart.