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Species · Ohio · BBS 2025 Release · 1966–2024

Baltimore Oriole Population Trend in Ohio

All statesGeneralists

Baltimore Oriole in Ohio has held roughly steady: down 4% on the route-weighted index since 1968.

-4%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 →
88Routes 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 Baltimore Oriole 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 Baltimore Oriole in Ohio. See the full index history below.

Baltimore Oriole Population Forecast in Ohio

If the recent trend holds, Baltimore Oriole in Ohio is projected to rise about 46% by 2029 — from 2.0 in 2024 to a central estimate of 2.9 (95% range 1.6–4.3). A 5-year backtest shows a typical error of ±28.5%, with 100% of held-out values landing inside the 95% band.

+46%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 →
2.9Projected 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 →
1.6–4.395% 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 →
±28.5%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, Baltimore Oriole in Ohio is projected to rise about 46% by 2029 — from 2.0 in 2024 to a central estimate of 2.9 (95% range 1.6–4.3). A 5-year backtest shows a typical error of ±28.5%, with 100% 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 →
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Baltimore Oriole Survey Routes in Ohio

Routes recording Baltimore Oriole 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 →
Bismark1519951967
Stonecreek1520241996
Kings Creek1120151992
Pittsfield820241992
Wilmington819961966
Bloomville720241992
Baxter Ridge720231998
Coal Run719811966
Garrettsvile619911966
Harveysburg619961966
Kenton520241968
Keene520231992
Graytown419841966
Troy419961966
Marion420221966
Newcomerstwn419951966
West Elkton420121993
Dunlap419881966
Ashley420181988
Birmingham420241988
Pike S.F.420131993
Middlefield320171967
Kalida320181966
Cosmos320191972
Westerville319831967

Baltimore Oriole Population Trend in Other States

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

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