Pectoral Sandpiper

The Pectoral Sandpiper is a medium-sized shorebird notable for its long neck and upright stance, giving it a somewhat more elegant profile than many of its stockier relatives. Its name refers to the dense streaking on its breast, which ends abruptly in a sharp line against the clean white belly — resembling a distinct bib or "pectoral" patch.

Upperparts are brown, streaked and edged with buff and rufous tones, and the legs are a soft yellowish-green. The bill is medium length, slightly drooped, with a dark tip and paler base.

During the breeding season, males develop an inflatable throat sac used in dramatic courtship displays on the Arctic tundra.

Key field marks

• Dense brown streaking on the breast that ends in a sharp, clean line against the white belly
• Longer neck and more upright posture than most sandpipers
• Yellowish-green legs
• Medium-length, slightly drooped bill with a dark tip
• Brown, streaked upperparts with buff and rufous edging

Similar species

• Sharp-tailed Sandpiper (rare vagrant from Asia): more rufous crown, breast streaking fades gradually rather than ending in a sharp line.
• Least Sandpiper: much smaller, lacks the sharply demarcated breast band.
• Baird's Sandpiper: buffier overall, longer wings extending past the tail, lacks the bold breast demarcation.

Habitat

Pectoral Sandpipers favor wet, grassy habitats such as flooded fields, sedge meadows, and marsh edges rather than open mudflats or sandy beaches, setting them apart from many other sandpipers.

Range and migration

They breed on Arctic tundra across Siberia and North America. Most birds migrate long distances to winter primarily in South America, with the North American breeding population undertaking one of the longest migrations of any bird by proportion of body size, and the species occurs as a scarce but regular vagrant in Australia and New Zealand.

Behavior

During the breeding season, male Pectoral Sandpipers perform elaborate courtship displays, inflating an air sac in the throat and chest to produce a deep, hooting sound while flying low over the tundra to attract mates — a highly unusual display among shorebirds.

Voice

Outside the display, calls include a low, reedy "churk" or "trrp," typically given when flushed.

Feeding

They forage by walking through wet grass and shallow water, picking and probing for insects, seeds, and small invertebrates, often more methodically than the frantic pecking of smaller peeps.

Nesting and breeding

Males are polygynous, mating with multiple females and taking no part in incubation or chick-rearing; females alone incubate the eggs in a ground nest and tend the precocial young.