In this group of shorebirds we find the Curlews and Godwits, of which some species are in rapid decline. Whimbrel and Eurasian Curlew belong to Numenius, a genus that lost two species globally in the 20th century (Slender-billed and Eskimo Curlews). Also, the Ruddy Turnstone has become increasingly absent in its former range. The majority of Calidris waders inhabits areas in the north where we find some of them breeding in the Swedish mountain heaths, some on the arctic tundra further north from the Swedish borders. But we have them as guests on their migration.