Crows are both predators and prey. As predators, they rob nests of songbirds and waterfowl, killing and eating newly hatched young, or cracking eggs. As prey, young crows and unhatched crow eggs are eaten by raccoons, opossums and tree-climbing snakes. Hawks and owls kill fledgling and adult crows. Crows are especially vulnerable to night attacks by great horned owl.

If crows locate an owl during the day, they will mob it -- swooping low, calling excitedly and attracting other crows, and generally harassing the bigger, less-maneuverable bird. They also mob hawks. In turn, crows are mobbed by smaller birds, especially kingbirds and red-wing blackbirds.