We get visited most days by the sparrowhawk (only the hawk, though, the tiercel hunts about 1/2 mile away. She flies up one side of the hedge then back down the other, and once chased a young starling into the garage. I went in to see what was going on just as she came back down the passage to the back door. She saw me, and turned in at the open kitchen door .. I followed, but she'd vanished. 15 minutes later I found her perched on the shower rail. Gardening gloves on, I caught her & put her out of the window. We also get visited, less frequently, by the kestrels. The hens are frightened witless (OK so hens aren't exactly 15 to 1 candidates to start with) by either. Luckily, though, the buzzard flies too high to cast a shadow....