a pigeon's bones weigh less than its feathers
A pigeon's feathers are heavier than its bones
Pigeons have been trained by the U.S. Coast Guard to spot people lost at sea.
Major city birds have learned to line their nests with cigarette butts to ward off parasites. Burnt nicotine serves as an insecticide, repelling lice, mites, and fleas.
Pigeons are everywhere because humans domesticated them 10,000 years ago for food, and have since been using them for other things until they were abandoned and perfectly adapted for an urban environment
Dinosaurs weren't all huge --- the smallest known to have existed were around the size of a pigeon.
Pigeons have fought in war --- Thirty-two carrier pigeons were awarded medals by the United Kingdom for their service in World Wars I and II.
Pigeons can't fart. Their intestines aren't long enough.
Pigeons actually produce milk to feed their young.
Mike Tyson loved keeping pigeons as a kid and the first fight he ever got into was when a thug ripped the head off one of his birds.
Carrier pigeons can cover up to 99 miles in one round trip.
Pigeons can tell the difference between a painting by Monet and Picasso.