UPDATE. thanks @aart - I started making a small chicken passage through the chainlink gate, as I really don't have time in the next week or so to work on cutting one into the coop... thought maybe I could eventually make a tunnel or box that the chickens would walk through that might be too scary for the raven. Chickens didn't mind the open pass through yesterday (about a foot square), neither did the raven(s). Was working on another idea in the barn a few hours ago and been checking for eggs as often as I can. I knew 2 hens were on the nests, so didn't worry about the raven. Then I saw Black Caviar, so I knew she was off the nest, went to get the egg and low and behold the raven was in the coop! HA! I slammed shut the gate, opened the door to the adjacent broody pen (not used this summer) and ran the wild thing in there and latched the door. So now I have him (?) captive. I have lectured him severely and will keep him in there a day or two. His mate has flown over calling. @TwistedSteel this is a mating pair that's been here longer than I have and I really respect them, especially when I see them dive-bomb the hawks. I've free ranged on over 6 acres for a little over 3 years and I'm surrounded by Nat'l forest. I've lost two chickens - one was to neighbor dogs before we added the perimeter fence, the other one we don't know what got her, but it was over a year ago and never came back for more. So that's the reason I'd rather not kill the raven. Having said that, I'd have no problem shooting a coyote, fox or most anything else. I know these birds are extremely smart, and I think by keeping one captive it will never ever ever want to come back. I read an old post here on BYC that said capture & release worked for them. Here's the thief in the broody pen. And the set up I have with the broody pen at one end of the run and the coop on the other end.