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.
People have different feelings about crows.
Some may appreciate the crow and admire them, but others see crows as pests and vermin. Throughout history, crows have always played both roles. Frequently a prominent figure in Native American folklore, the British also have a popular superstition that the British Empire will perish if the Tower of London ever loses its crows. At the same time, crows were also seen as an evil foreboding. Unlike the more solitary raven, crows are more social, preferring to roost with large flocks of other crows.