Most people know the rock dove by its more common
name, pigeon. They were brought to the U.S. from England in the 1600s.
One of their original habitats was cliffs, which is
why they like cities with a lot of skyscrapers. In some cities, there are so many pigeons
that they are considered a nuisance.
Pigeons have been used to carry messages over great
distances. People still raise them for their homing ability.
Most pigeons are shades of gray, but some are white
or reddish-brown.