The Ramsar List of Wetlands of International Importance now includes 1,888 sites, which are called "Ramsar Sites", covering around 1,853,000 km². This has increased from 1,021 sites in 2000. The nation with the most sites is the United Kingdom at 168. The nation with the greatest area of listed wetlands is Canada, with over 130,000 km², including the Queen Maud Gulf Migratory Bird Sanctuary at 62,800 km².