Some of my officemates look out onto a rooftop where crows destroyed a pigeon's nest and ate the babies, and they were put off crows. Now I can let them know that were we live (the northeast), squirrels and chipmunks are a much greater problem, and even ants and raccoons kill more baby birds than do crows. Obviously crows will take a snack when they see one, but baby birds are exposed to many risks and crows are a smaller part of that picture.
Yes, I can now identify crows vs. ravens, thanks!