Pigeon

A globally ubiquitous urban bird descended from the rock dove of Mediterranean cliffs — domesticated for over 5,000 years for food, communication, racing, and ornamentation, with feral populations in nearly every city worldwide.

Wild ancestor

The “city pigeon” is Columba livia — the same species as the wild rock dove, found naturally on Mediterranean coastal cliffs. The wild rock dove still exists, but most pigeons we encounter are feral descendants of domestic stock that escaped from coops or were deliberately released.

Cities provide ideal pigeon habitat:

Stone buildings replicate cliff faces.
Window ledges, statues, and bridges serve as nest sites.
Year-round food from human waste and feeding.
Few predators (urban hawks have begun to take some).

A long domestication

Pigeons have been domesticated for ~5,000 years — among the earliest domesticated birds. Roman, Greek, Egyptian, and Mesopotamian writings document pigeon-keeping for:

Meat — squab (young pigeon) was a luxury food.
Manure — guano was prized fertilizer.
Communication — homing pigeons carried messages.
Ornamental breeding — fancy pigeon varieties (over 350 named breeds).

Charles Darwin’s On the Origin of Species used domestic pigeon breeding as a primary example of artificial selection, since the dramatic variety from a single ancestral species made the principle visible.

Wartime communicators

Homing pigeons served military communication into the 20th century. Both world wars used pigeon messengers extensively. Notable cases:

Cher Ami — a U.S. Army pigeon credited with saving 194 American soldiers in WWI. Awarded the Croix de Guerre with palm.
GI Joe — saved an Italian village from accidental Allied bombing in WWII.
British dropbox pigeons — coded messages dropped from aircraft for resistance use.

The pigeons could navigate accurately over hundreds of kilometers, including through unfamiliar terrain.

Pigeon racing

Pigeon racing remains a global hobby — birds released hundreds of kilometers from home, the speed of return measured. Top racing pigeons sell for hundreds of thousands of dollars; one Belgian-bred bird sold in 2020 for €1.6 million (about $1.9 million).

The hobby is particularly popular in Belgium, Netherlands, Taiwan, and parts of China.

Reputation problems

Despite their long history, pigeons are reviled in modern cities — called “flying rats” for their abundance and droppings. The droppings damage masonry, statues, and cars. Pigeon control has spawned a small industry: spikes on ledges, deterrent gels, repellent bird gel, falconers hired by airports, and other measures.