Black Turnstone - Ecology

Ecology

It feeds mainly on invertebrates, particularly crustaceans and mollusks in winter and insects during the breeding season. Seeds, eggs and carrion are also taken. At the breeding grounds it mainly feeds in wet meadows with sedges. In winter, its typical habitat is rocky coasts but it also feeds on beaches, mudflats and man-made structures such as jetties and breakwaters. It uses its bill to turn over stones, algal mats and other objects to get at prey hidden beneath.

It arrives on its breeding ground from early May to early June with the males arriving first. The birds often return to the same territory and pair with the same mate as previous years. The nest is a scrape dug mainly by the male. It is usually located amongst sedges or grasses or under willows. Four eggs are usually laid; they are olive or pale greenish with darker spots. The eggs are incubated for 21–24 days by both parents. The young birds are precocial and are able to leave the nest and feed themselves soon after hatching. They are able to fly well after 25–34 days.