Scientific Name: Tringa melanoleuca
Family: Scolopacidae — Sandpipers and Allies
A graceful shorebird of North America’s wetlands, the Greater Yellowlegs is recognized by its long, bright yellow legs, slightly upturned bill, and ringing calls. Often seen wading through shallow water, it actively pursues small fish and aquatic invertebrates.
Identification
A tall, elegant shorebird with very long bright-yellow legs, a long neck, and a long, stout bill that is usually slightly upturned. The bill is typically noticeably longer than the head. Plumage is gray-brown above and white below, becoming more heavily streaked and barred in breeding plumage. Its loud, ringing three- or four-note calls and active feeding style are often useful clues.
Similar Species
Lesser Yellowlegs is the species most likely to be confused with Greater Yellowlegs. Both are slender gray-and-white shorebirds with conspicuous yellow legs, but Greater Yellowlegs is larger and more robust, with a noticeably longer, thicker bill that often shows a slight upward curve. Lesser Yellowlegs has a shorter, finer, straighter bill and generally appears more delicate. Size can be difficult to judge when the birds are seen alone, making bill proportions especially useful.
Willet is a less likely source of confusion but can appear superficially similar, particularly in subdued nonbreeding plumage or at a distance. Willets are stockier, with a thicker, straighter bill and grayish rather than bright yellow legs. In flight, the Willet’s bold black-and-white wing pattern provides an especially obvious distinction; Greater Yellowlegs has comparatively plain wings
Natural History
An energetic visual and tactile feeder, Greater Yellowlegs walks through shallow water and mud, picking, probing, and sometimes sweeping the bill from side to side. It eats aquatic insects, crustaceans, small fish, amphibians, and other invertebrates. It breeds in boreal and subarctic landscapes, often nesting on the ground in open forest, muskeg, or wetland-edge habitats.
Habitat & Distribution
Breeds across Alaska and much of boreal Canada, generally near bogs, muskeg, ponds, and other wetlands within open forest or tundra-edge landscapes. During migration it uses an exceptionally broad range of shallow-water habitats, including marshes, flooded fields, pond margins, mudflats, sewage ponds, and tidal wetlands. Winters from the southern United States through Central America, the Caribbean, and much of South America.
Conservation
IUCN Red List: Least Concern (LC) • Population trend: Decreasing
The global category remains Least Concern, but monitoring is difficult because the species breeds at low densities across remote northern landscapes. Wetland loss and degradation along migration and wintering routes remain important concerns, and contaminants, climate-driven changes to boreal wetlands, and habitat alteration can affect the network of sites used throughout the annual cycle.
My Encounters
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Ceres WTP, California — July 30, 2025
1/250 sec · f/10 · ISO 160
Ceres WTP, California — July 30, 2025
1/2500 sec · f/10 · ISO 6400
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