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

Eastern Towhee Population Trend in Ohio

All statesGeneralists

Eastern Towhee in Ohio has risen sharply: up 54% on the route-weighted index since 1968.

+54%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 →
58YearsYears 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 53% 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 26% by 2029 — from 8.3 in 2024 to a central estimate of 11 (95% range 8.0–13). A 5-year backtest shows a typical error of ±29.6%, with 40% of held-out values landing inside the 95% band.

+26%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 →
11Projected 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 →
8.0–1395% 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 →
±29.6%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, Eastern Towhee in Ohio is projected to rise about 26% by 2029 — from 8.3 in 2024 to a central estimate of 11 (95% range 8.0–13). A 5-year backtest shows a typical error of ±29.6%, with 40% 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 →
2025107.513
2026107.613
2027107.713
2028107.813
2029118.013

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
Dell2820191993
Birmingham2820241988
South Olive2820241993
Tar Hollow2720241992
New Marshfld2620241966
Rome2520241966
Wayne N.F.2420241992
Coal Run2119921966
Harveysburg 22120241997
Dresden1920241966
Stonecreek1920241996
Zaleski S.F.1920241992
Scioto Trail1920131992
Pike S.F.1920131992
Bolins Mills1720241966
Ash Ridge1520211992
Smithfield1420241966
West Elkton1420121992
Wilgus1120191992
Meadowbrook1020211966
Pomeroy1020221966
Coshocton1019911990
Keene1020231992
Ray920241992

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 2026-05-22.