The southern lapwing (Vanellus chilensis) is the national bird of Uruguay, where it is called tero. Due to its bold and pugnacious nature it has become the namesake and mascot of the Uruguay national rugby union team, Los Teros. It is the only crested wader in South America. The chest, cravat, and crest of the Southern lapwing are black. It has a grayish-brown back with a coppery shine, red eyes, a pink beak, a sharp wing spur, and black and white under wings and tail. Southern Lapwings are exclusively ground dwelling birds with a diet composed of items that can be caught on the ground and in shallow water. The main prey items are insects, other arthropods, crustaceans, mollusks and small fish.