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

Bald Eagle Population Trend in Ohio

All statesBirds of prey

Bald Eagle in Ohio has surged: up 895% on the route-weighted index since 1996.

+895%Since 1996TrendPercent 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 →
32Routes 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 →
28YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Bald Eagle 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 →

No notable trend signals for Bald Eagle in Ohio. See the full index history below.

Bald Eagle Population Forecast in Ohio

If the recent trend holds, Bald Eagle in Ohio is projected to fall about 46% by 2030 — from 0.41 in 2025 to a central estimate of 0.22 (95% range 0.08–0.36). A 5-year backtest shows a typical error of ±59.6%, with 0% of held-out values landing inside the 95% band.

-46%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 →
0.22Projected 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 →
0.08–0.3695% 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 →
±59.6%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, Bald Eagle in Ohio is projected to fall about 46% by 2030 — from 0.41 in 2025 to a central estimate of 0.22 (95% range 0.08–0.36). A 5-year backtest shows a typical error of ±59.6%, with 0% of held-out values landing inside the 95% band.19712030
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 →
20260.200.060.34
20270.200.060.35
20280.210.070.35
20290.220.070.36
20300.220.080.36

Bald Eagle Survey Routes in Ohio

Routes recording Bald Eagle 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 →
Napoleon320252025
Lucerne320252025
Kingsway220221971
Pittsfield220242024
Herner Crns220252019
Botkins220182018
Kalida220092004
No Kenton220242024
Lockport120222022
Kunkle120252023
Bloomville120251996
Marion 2120252025
Bismark119901990
Middlefield120062006
Stonecreek120252017
Lenox120242016
Birmingham120232022
Kenton120252001
Marion120212021
New Dover120172017
Fulton120242014
Dresden120222022
Smithfield120242024
Darrtown120212021
Omega120232012

Bald Eagle Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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