Robin, Redbreast, or Robin Redbeeast (Erythacus rubecula), a well-known bird of the Warbler family, resident in Britain, breeding as far north as the Orkneys. It is found nearly all over Europe, in North-West Africa, and the neighbouring islands, and in winter migrates as far south as the Sahara and eastward to Persia. It is rather less than six inches long, olive-brown above, reddish-orange on the breast, and greyish on the under parts. Robins are pugnacious in disposition, and solitary in habit. They feed on insects, worms, and fruit, and in severe weather, when the supply fails, they fearlessly approach houses in search of scraps and crumbs. Many folk-tales are current as to the origin of the ruddy plumage on the breast.