In the 19th century as today, indigenous land fauna was very scanty. A small wolf, the warrah, the "loup-renard" of Louis Antoine de Bougainville, is extinct, the last having been seen about 1875 on West Falkland. It is commemorated in the name of one of the island's rivers – the Warrah River – and the settlement of Fox Bay. Some herds of cattle and horses ran wild; but these were introduced by settlers as were the wild hogs, the numerous rabbits and the less common hares. All these have greatly declined in numbers, being profitably replaced by sheep.