Where humans go, crows are close behind. The data support the fact that there are more crows in urban areas than there were five or ten years ago. In Seattle, we've seen about an eight-fold increase in crows over the last ten years. There are several advantages to living in the city. In urban and suburban areas, crows are safe from hunters and owls.
Cities also tend to be warmer than surrounding natural habitats.
There's usually plenty of food where people live, and crows are efficient scavengers, eating anything they can find. However, a diet of discarded refuse and other urban sources may have an adverse effect on crows. Crow pairs nesting in urban areas generally have fewer young. The lower nutritional value of the food available may be an important factor. To supplement their diet, crows frequently steal eggs from the nests of other birds - a habit viewed unfavorably by many humans.