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Species · Ohio · BBS 2026 Release · 1966–2025

Eastern Towhee Population Trend in Ohio

All statesForest birds

Eastern Towhee in Ohio has risen sharply: up 58% on the route-weighted index since 1968.

+58%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 →
87Routes 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 OhioNotable 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 →

Eastern Towhee has risen sharply in Ohio: up 58% on the route-weighted index since 1968.

Eastern Towhee Population Forecast in Ohio

If the recent trend holds, Eastern Towhee in Ohio is projected to rise about 36% by 2030 — from 7.7 in 2025 to a central estimate of 10 (95% range 7.8–13). A 5-year backtest shows a typical error of ±35%, with 40% of held-out values landing inside the 95% band.

+36%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 →
10Projected 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 →
7.8–1395% 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 →
±35%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 Ohio is projected to rise about 36% by 2030 — from 7.7 in 2025 to a central estimate of 10 (95% range 7.8–13). A 5-year backtest shows a typical error of ±35%, with 40% 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 →
2026107.413
2027107.513
2028107.613
2029107.713
2030107.813

Eastern Towhee Survey Routes in Ohio

Routes recording Eastern Towhee in Ohio.
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 →
Tick Ridge4320191993
Dresden2920251966
Dell2820191993
Birmingham2820241988
Tar Hollow2720241992
Zaleski S.F.2420251992
Rome2320251966
Wayne N.F.2320251992
Coal Run2119921966
Stonecreek2120251996
Baxter Ridge1920251998
New Marshfld1920251966
Bolins Mills1920251966
Scioto Trail1920131992
Pike S.F.1920131992
South Olive1720251993
Smithfield1520251966
Ray1520251992
Ash Ridge1520211992
West Elkton1420121992
Wilgus1120191992
Meadowbrook1020211966
Pomeroy1020221966
Coshocton1019911990
Keene1020231992

Eastern Towhee Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaoklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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