European colonists brought their domesticated pigeons to the New World, where they raised them once more for food, messages and diversion. … Some of America’s tame immigrant pigeons escaped yet again and evolved into a new population of feral pigeons — the ones that thrive in American cities.

Why pigeons are increasing?

Population boom The reasons attributed to this is abundance and easy availability of food and urbanisation. People feed pigeons for various reasons: on religious beliefs that feeding them brings prosperity, or on humanitarian grounds that they ought to feed them, else they’d die.

Are modern pigeons smart?

Pigeons are considered to be one of the most intelligent birds on the planet and able to undertake tasks previously thought to be the sole preserve of humans and primates.