The three most common Columbidae pigeon and dove species in North America are: Rock Pigeon – Probably the most well-known city dweller in the U.S., these birds are found almost everywhere. They are gray with reddish-purple feet and have two black bands on their wings as well as a green iridescent throat. Eurasian Collared Dove – Most often confused with the rock pigeon, this species is found across the U.S. except in the northeastern states. Usually grey or light brown, these birds have a long tail and a distinct black crescent collar on the back of the neck. Mourning Dove – Named for its sad, haunting call, these birds are rarely found in deep woods, preferring open fields or a perch on a telephone wire. With their tawny feathers, black-spotted wings, and white-tipped tail feathers, these doves blend in perfectly with their surroundings. One key way to tell the difference between a pigeon vs. a dove is size. Of the three species listed above, rock pigeons are the largest, with an average weight of 13.5 ounces. Mourning doves are the smallest, weighing only about 4.5 ounces.