I'd not have believed it, but I watched it going on all day. They've been hanging around for weeks, as they typically do, but these big black birds have definitely gotten assertive. Today, i watched them repeatedly raid our outside nest box. I did not observe them doing so, but I believe they may be actually going into the coop to make off with eggs. Lots of them! One of our ducks was sitting on 12 or 15 a day or so ago. I knew I had to go sort thru and reduce the clutch. Went to take a peek today, and none were there! This may explain also what happened to our little broody gal who was caught eating an embryo from a broken egg. I was thinking it was another case of egg eating hens, and it may still be. She lost two chicks a week or more ago also. Never saw hide nor feather. Now I'm wondering now if these rascal ravens are getting aggressive to the point of pestulance. Anyone else ever have this happen? Can they become predators like hawks also? We found the plundered remains of my best hen and her chicks two weeks ago. Looked like a raptor, but we've never had trouble with hawks. Now, I'm afraid we're in some Hitchcock episode or a bad chapter of E.A. Poe. Suggestions?