The sparse rainfall feeds seasonal creeks and waterholes. The plentiful wildlife relies on waterholes and marshes scattered throughout the reserve. Wildebeest follow the rains, while elephants travel a network of paths between waterholes. They congregate in large flocks at waterholes in dry regions to drink and bathe. Hills, rocks, waterholes, trees, plains and other natural features may be sacred sites. Reeds and sedges grow near permanent water sources such as springs and waterholes. Branches are used to make protective or concealing covers for waterholes and rock cisterns. Larger groups are formed especially when drinking at waterholes in arid regions. To supplement their diet with minerals, they congregate at mineral-rich waterholes and mineral licks. The elephants live in a bucolic area referred to as The Kingdom, with dotted waterholes. Birdlife is prolific, most often seen at waterholes at dawn and dusk. Droughts may last many months and waterholes may dry up. Both female and male lions moved foremost within of waterholes in all seasons. Mound springs and other waterholes are vulnerable to overuse and damage. Canning had been organising Aboriginal hunts to show the explorer where the waterholes were.