The vast flat plains of the Pampas are Argentina's agricultural heartland and the birthplace of the gaucho (cowboy). Lying southwest of Buenos Aires is the location of Argentina's famous beef and grain industry, the source of the country's wealth. The area is festooned with small agricultural towns, which are home to the majority of Argentina's population, but hold little to interest the tourist. There are however excursions available to different ranches during which one can enjoy a day's horseriding and feasting on asado. The area provides some of the best horseriding in the world, and is a good destination for those keen for a horseriding holiday. Visitors to the area can also attend domas, gaucho gatherings that are held every Sunday. The domas consist of rodeo-like events, horse racing, and other games and competitions, as well as stalls selling gaucho-inspired crafts. There are also some interesting animals that live only on the pampas, including the rhea (a large flightless bird, similar to an emu or ostrich), the pampas deer, the pampas fox, several armadillo species, the white-eared opossum, the Elegant Crested Tinamou, and more.