At present, there are five protected areas in Kuwait recognized by the IUCN. In response to Kuwait becoming the 169th signatory of the Ramsar Convention, Bubiyan Island's Mubarak al-Kabeer reserve was designated as the country's first Wetland of International Importance. The 50,948 ha reserve consists of small lagoons and shallow salt marshes and is important as a stop-over for migrating birds on two migration routes. The reserve is home to the world's largest breeding colony of crab-plover.