The white-rumped sandpiper is a small shorebird that breeds in the northern tundra of Canada and Alaska. This bird can be difficult to distinguish from other similar tiny shorebirds; these are known collectively as "peeps" or "stints". These birds are not often spotted. Males sing a bizarre, mechanical-sounding, insectlike song, which alternates rapidly between a wiry buzzing sound and a low, guttural or snoring sound. A very high-pitched, electric-sounding tzeet often likened to a mouse squeak. Click here to listen to them.