Larger than the Least, about the same size as Baird's Sandpiper, the White-rumped Sandpiper's singular rump, long, slender bill, along with its distinctive call, make it readily identifiable among "peeps". Also like the Baird's, its wing tips extend beyond the tail, giving this bird a "pointed look". Breeding adults have rust-colored crowns. In winter, when these birds turn to gray, they can still be identified by their narrow, pale eyebrow.
The upper parts of the immature White-rumped are edged with rufous.
The White-rumped Sandpiper breeds in Northern Alaska and Arctic Canada.
Calls or song.
This bird emits a very high-pitched "tzeet".
Population and distribution.
The White-rumped Sandpiper is widespread throughout the eastern and mid United States, inhabiting flats, grassy pools and wet meadows. In migration they cover amazing distances all the way to Argentina.
The White-rumped makes its grass nest in a slight depression on the ground.