In Namibia, fewer than 1,000 Purple Herons are estimated (1.3% of global numbers) as follows: 340 birds on the Zambezi and Chobe rivers (10 birds per 10 km of river), 110 birds on the Kwando and Linyanti rivers (3.2 birds per 10 km), 115 birds on the Okavango River (five birds per 10 km), 50 birds on the Orange River, 50 birds on the Kunene River and fewer than 50 birds on large dams or wetlands.