This robin-sized sandpiper has yellow legs and a slightly decurved, dark bill, often
with a yellow or dull green base. In breeding plumage, look for a buffy, black-streaked
back, white supercilium, dark loral stripe and a light brown neck and breast with blackish
stripes. In all plumages, there is a strong demarcation between the breast and white
Pectoral Sandpipers are most likely confused with other yellow-legged sandpipers.
They are larger than Least Sandpipers and the strong
demarcation between the upper breast and white belly distinguish them from Stilt, Upland and Buffbreasted sandpipers, Ruffs and
yellowlegs. Pectoral Sandpipers tend to use wetter, more densely vegetated areas than
other sandpipers. Bairds Sandpipers are smaller with
Sandpipers winter in southern South America and nest in low to mid-arctic tundra. During
courtship, promiscuous males inflate and deflate pendulous breast sacs and create
foghorn-like hooting while performing undulating aerial displays.