BirdAnalyst
Species · Minnesota · BBS 2025 Release · 1966–2024

Wilson's Phalarope Population Trend in Minnesota

All statesShorebirds

Wilson's Phalarope in Minnesota has collapsed: down 77% on the route-weighted index since 1978.

-77%Since 1978TrendPercent 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 →
9Routes 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 →
13YearsYears 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 MinnesotaNotable 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 collapsed in Minnesota: down 77% on the route-weighted index since 1978.

Wilson's Phalarope Survey Routes in Minnesota

Routes recording Wilson's Phalarope in Minnesota.
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 →
Wylie1219811981
Greenbush219991999
Ash Creek120082008
Lakeville119741973
Oklee119851985
Erie120041982
Badger120081979
Lake Bronson119791978
Tenney119911991

Wilson's Phalarope Population Trend in Other States

californiacoloradoidahoillinoisiowakansasmontananebraskanevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexasutahwashingtonwisconsinwyoming

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