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

Canada Goose Population Trend in Wisconsin

All statesWaterfowl

Canada Goose in Wisconsin has surged: up 226× on the route-weighted index since 1969.

226×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 →
97Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Canada Goose Trends in WisconsinNotable 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 increasecomputed 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 →

Canada Goose has surged in Wisconsin: up 226× on the route-weighted index since 1969.

Canada Goose Population Forecast in Wisconsin

If the recent trend holds, Canada Goose in Wisconsin is projected to rise about 103% by 2029 — from 9.4 in 2024 to a central estimate of 19 (95% range 11–28). A 5-year backtest shows a typical error of ±47.6%, with 60% of held-out values landing inside the 95% band.

+103%Change by 2029TrendPercent 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 →
19Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
11–2895% 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 →
±47.6%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, Canada Goose in Wisconsin is projected to rise about 103% by 2029 — from 9.4 in 2024 to a central estimate of 19 (95% range 11–28). A 5-year backtest shows a typical error of ±47.6%, with 60% of held-out values landing inside the 95% band.19662029
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 →
2025189.226
2026189.527
2027189.927
2028191027
2029191128

Canada Goose Survey Routes in Wisconsin

Routes recording Canada Goose in Wisconsin.
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 →
Kiel45020221998
Rolling Pr26920241970
Loraine12720211974
Wis Rapids9020231969
Land O' Lakes 28020222022
Phillips7420241983
Paris6020241982
Popple River5820222000
Cochrane5820241976
Manawa5420231981
Omro4620011970
Casco4320231984
Union Twp4220241966
Esdaile4220231991
Brownsville4020211994
Mukwonago3420042001
Stetsonville3020241991
Pardeeville2720231978
Dresser2520241978
Buena Vista2520232002
Hudson2420241971
Hebron2420231978
Stevens Pt2320231985
Pt Washingtn2120241978
Holland2020242001

Canada Goose Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawyoming

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