The Lesser Yellowlegs is a smaller, slimmer version of the Greater Yellowlegs, best distinguished by its straighter, shorter bill (barely longer than the head) and a two-note 'tew-tew' call. Both species are common migrants, often seen together at mudflats and marshes where their size difference becomes apparent. The Lesser is more numerous and wide-ranging during migration.
Best time to see a Lesser Yellowlegs
The best time to see a Lesser Yellowlegs is April–August, when about 70% of U.S. sightings happen, based on 16,454 research-grade iNaturalist observations.
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