Calidris alpina; dunlins are inhabitants of coastal wetlands and mud flats. In summer it is easy to recognize by its blackish belly (much like the golden plover in summer cloak). On Iceland, it is common along all coastal regions wherever suitable habitat exists. It can however also be found breeding in highland regions, be it rather rare. In winter they migrate south-east where they can be found in large feeding flocks along European coastal mud flats.