I have a fondness of the crows. They do keep the hawks and other predators away. Crows are territorial but just maybe they're also protecting other animals within their territory. As smart as they are, I wouldn't be surprised. I've told this story before about how the crows saved one of my chickens. Just like you described, Laurie, the crows literally attacked a hawk as it swooped down and grabbed one of my hens. Then chased the hawk until it left the scene of the crime, screaming the whole time. It was quite a scene and amazing to watch it happen while running to try to save the hen but knowing I was too far away! Nowadays, my chickens always listen to the calls of the crows who seem to tell them when a hawk or other predators are near.
Our local crows come around more in the winter and will eat from the chicken feeders. It is interesting to watch them as they call to each other from the treetops. Although sometimes it feels like they are watching us a little too closely!
In the mornings we can see them through the windows but apparently they can see us too because as soon as we move, they fly away!
