A worldwide community photographing and learning about wildlife
Calidris alba
The Sanderling is a small plump sandpiper, 18–20 cm in length. Its weight ranges from 40-100 g. The winter bird (like those spotted) is very pale, almost white apart from a dark shoulder patch. This is the source of the specific name, alba, which is the Latin for "white". Later in the summer, the face and throat become brick-red. This bird is similar in size to a Dunlin, but stouter, with a thick bill. It shows a strong white wingbar in flight, and runs along the sandy beaches it prefers with a characteristic "bicycling" action, stopping frequently to pick small food items.
During the winter and its migration it is most commonly found on coastal sandy beaches, but also occurs on tidal sand flats mud flats and the shores of lakes and rivers. More infrequently it make occur on rocky shores. These birds were photographed along the beach at Huntington Beach State Park near Murrells Inlet, SC.
Sanderlings feed on invertebrate prey buried in the sand in the upper intertidal. In North America this largely consists of the isopods, Excirolana linguifrons and Excirolana kincaidii, and the mole crab, Emerita analoga.
No Comments