Why do pigeons perch on statues?

Image via Wikipedia

Pigeons that you see hanging out under bridges and on statues are the feral descendants of domesticated Rock Pigeons. In their native land of southern Europe, North Africa, and into South Asia, the  Rock Pigeons nest along coastal cliff faces.

In their non-native land, pigeons have adapted to nesting under bridges and artificial cliff faces created by tall buildings with accessible overhangs and perching on giant sculptures that serve as substitutes for natural ledges.