Grey-tailed Tattler

The grey-tailed tattler is closely related to the North American wandering tattler and difficult to tell from it. Both tattlers are unique among the Tringa species in having unpatterned, greyish wings and back and, in breeding plumage, a scaly breast pattern extending more or less onto the belly, with a rather prominent supercilium. (Wikipedia, general species account)

They resemble common redshanks in shape and size. The upperparts, underwings, face and neck are grey and the belly is white, and the short legs are yellowish, with a bill that has a pale base and dark tip. Also known as the Siberian or Polynesian tattler, this is a small shorebird whose English name refers to its noisy call. It breeds in northeast Siberia, and after breeding it migrates to an area from southeast Asia to Australia. (Wikipedia, general species account)