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Species · Kansas · BBS 2025 Release · 1966–2024

Wilson's Phalarope Population Trend in Kansas

All statesShorebirds

Wilson's Phalarope in Kansas has fallen sharply: down 51% on the route-weighted index since 1973.

-51%Since 1973TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
6Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
14YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Wilson's Phalarope Trends in KansasNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Wilson's Phalarope has fallen sharply in Kansas: down 51% on the route-weighted index since 1973.

Wilson's Phalarope Survey Routes in Kansas

Routes recording Wilson's Phalarope in Kansas.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Leoti2020102010
Plymell1020242024
Wallace620101982
Missler119961996
Albert120191969
Grigston120192015

Wilson's Phalarope Population Trend in Other States

californiacoloradoidahoillinoisiowaminnesotamontananebraskanevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexasutahwashingtonwisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.