Greater Yellowlegs is a shorebird with bright yellow legs that strides through shallow U.S. wetlands. It is bulkier and longer-billed than Lesser Yellowlegs (Tringa flavipes), a close lookalike at migration stops.
Greater Yellowlegs is bulkier and about 50% larger, although size can be hard to judge alone. Its bill is thicker, longer than the head, and often slightly upturned; Lesser’s is thinner and nearly straight.
Why they get mixed upBoth have bright yellow legs and gray-brown backs.