Any of several New World birds of a family (Mimidae) known for their mimicry of birdsong. The common, or northern, mockingbird (Mimus polyglottos) can imitate the songs of 20 or more species within 10 minutes. About 10 in. (27 cm) long, it is gray, with darker, white-marked wings and tail. It ranges from the northern U.S. to Brazil; it has been introduced into Hawaii and thrives in suburban areas. It sings from perches, even at night, and vigorously defends its territory. Other Mimus species range from Central America to Patagonia, and the blue mockingbird (genus Melanotis) inhabits much of Mexico. Various subspecies of the Galápagos mockingbird (genus Nesomimus) inhabit the different islands.