Bharatpur Bird Sanctuary, now known as Keoladeo National Park is considered the largest in Asia. The Keoladeo National Park or Keoladeo Ghana National Park in Rajasthan, India is a famous avifauna sanctuary that sees (or saw) thousands of rare and highly endangered birds such as the Siberian Crane come here during the winter season. Over 230 species of birds are known to have made the National Park their home. It is also a major tourist centre with scores of ornithologists arriving here in the hibernal season. It was declared a protected sanctuary in 1971. It is also a declared World Heritage Site.