Calidris acuminata
Family: Sandpipers and Allies · Status: Vagrant · Size: 17–21 cm · Conservation: Vulnerable
Breeds in northeast Siberia; winters south to New Guinea, the Pacific Islands, and eastern Australia.
Medium-sized sandpiper recalling Long-toed Stint but larger. From Long-toed Stint, told by larger size, rufous tones on crown in all plumages, longer legs, and thicker bill. From Pectoral Sandpiper, distinguished by streaking on flanks (Pectoral has clean flanks), warmer rufous crown, and in breeding plumage, chevron-shaped markings on underparts rather than pure streaking; Pectoral almost always shows pale tones on bill-base while Sharp-tailed often has all-dark bill.
Mudflats, sandflats, brackish lagoons, and shallow freshwater or brackish wetlands with low vegetation.
Typically feeds at water's edge on insects, snails, and crustaceans.