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Species · Minnesota · BBS 2026 Release · 1966–2025

American Coot Population Trend in Minnesota

All statesWetland birds

American Coot in Minnesota has fallen sharply: down 66% on the route-weighted index since 1969.

-66%Since 1969TrendPercent 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 →
49Routes 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 →
50YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable American Coot 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 →

American Coot has fallen sharply in Minnesota: down 66% on the route-weighted index since 1969.

American Coot Population Forecast in Minnesota

If the recent trend holds, American Coot in Minnesota is projected to stay roughly flat through 2030, near 0.00 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±80%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2030TrendPercent 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 →
0.00Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–1.295% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±80%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, American Coot in Minnesota is projected to stay roughly flat through 2030, near 0.00 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±80%, with 100% of held-out values landing inside the 95% band.19672030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20260.020.001.2
20270.000.001.2
20280.000.001.2
20290.000.001.2
20300.000.001.2

American Coot Survey Routes in Minnesota

Routes recording American Coot 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 →
Austin1620012001
Franklin620182018
Chokio420241978
Redwood Fall319841980
Backus319791968
Big Stone320111996
Greenbush320161996
Money Creek219911981
Chatfield219801980
Ash Creek219931983
Lakeville219891978
Minnetonka220011982
Courtland220081978
Maynard220011994
Appleton220191981
Cromwell219981997
Edwards219781978
Tenney220111978
Fairmont220031993
Tyler220021993
Brainerd220082001
Ashby220122012
Hartland120011999
Huntley119931971
Sherburne Nr120251991

American Coot Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutfloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamichiganmississippimissourimontananebraskanevadanew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-dakotatennesseetexasutahvermontwashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.