Pectoral Sandpiper. The pectoral sandpiper (Calidris melanotos), often abbreviated pec, is a small, migratory wader that breeds in arctic regions of North America and Asia, wintering in South America and Oceania. It Pectoral Sandpiper Calidris Melanotos Single Bird Stock Photo 2693335573 Shutterstock Pectoral Sandpiper (Calidris melanotos) Wild Bird Gallery vogelwarte.ch Pectoral Sandpiper Pectoral Sandpiper (Calidris melanotos) , These medium sized shorebirds nest in the tundra along the Arctic Ocean and then make an 8,000 mile journey to their wintering grounds in South America. , Pectoral Sandpiper (Calidris melanotos) U.S. Fish & Wildlife Service