Set up a larsen trap , if you dont have a call bird from another area, then bait it with an egg , they are very destructive birds and will raid any nests, I have seen them pecking the eyes out of young rabbits while they are still alive, grey squirrels are just as bad, I do a lot of control on a couple of large houses with a bit of land and they are amazed at the amount of song birds etc they are seeing after I started controlling the vermin for them , and there chickens are safe lol