Cattle grids, as they are called in Great Britain, Ireland, and South Africa, are known by a wide variety of other names in other parts of the world. In the United States, they are cattle guards. "Mata burro" ("donkey killer") is the preferred name in Brazil and Venezuela, while "guarda ganado" ("cattle keeper") is what they are called in Argentina. Alternatives in the United States include car crossing, auto gate, corduroy gate, stock gap, cattle pass, run-over, and many others. Canadians use pit gate, vehicle pass, and Texas gate, as well as cattle guard, which in Canada refers mainly to guards at railway lines.