We had a big old raven perch in the tree outside our front window. Wondered what he/she was up to and then suddenly it swooped down to the ground out of my sight line. A little later it was back and perched in the same place looking for something. Suddenly it swooped down and it was after a chipmunk which we have in abundance. I think it may have been raised by a raptor as it was thinning our chipmunk and ground squirrel population like a hawk or falcon would. Hope it stays around as we are knee deep in these little rodents. This particular raven is an excellent hunter. It wasn't perched over 30' from the front window so we have an excellent view of this magnificent large bird as it hunted a meal.