BirdAnalyst
Species · Wisconsin · BBS 2026 Release · 1966–2025

Eastern Towhee Population Trend in Wisconsin

All statesForest birds

Eastern Towhee in Wisconsin has held roughly steady: down 7% on the route-weighted index since 1968.

-7%Since 1968TrendPercent 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 →
96Routes 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 →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Eastern Towhee 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 →

No notable trend signals for Eastern Towhee in Wisconsin. See the full index history below.

Eastern Towhee Population Forecast in Wisconsin

If the recent trend holds, Eastern Towhee in Wisconsin is projected to fall about 16% by 2030 — from 2.7 in 2025 to a central estimate of 2.2 (95% range 0.90–3.6). A 5-year backtest shows a typical error of ±27.5%, with 100% of held-out values landing inside the 95% band.

-16%Change 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 →
2.2Projected 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 →
0.90–3.695% 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 →
±27.5%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, Eastern Towhee in Wisconsin is projected to fall about 16% by 2030 — from 2.7 in 2025 to a central estimate of 2.2 (95% range 0.90–3.6). A 5-year backtest shows a typical error of ±27.5%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20262.30.923.6
20272.30.913.6
20282.30.913.6
20292.30.913.6
20302.20.903.6

Eastern Towhee Survey Routes in Wisconsin

Routes recording Eastern Towhee 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 →
Minong3520251967
Hatfield3519981970
Union Twp3020251966
Mather2420231966
Pigeon Creek1320251999
Meridean1120251998
Cadott1020251966
Hollister920251967
Gilmanton920251966
N Freedom920251966
Grand View720251966
Viroqua720231966
Bashaw720252004
Esdaile620251966
Cochrane620251966
Saxeville520251966
Princeton520241966
Land O' Lakes 2520252017
Amberg420251980
Wausaukee320251980
Trempealeau320241966
Oconto Falls320231968
Newburg Crns320251966
New Lisbon320251967
Conover320251998

Eastern Towhee Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawyoming

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