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Species · Ohio · BBS 2026 Release · 1966–2025

Baltimore Oriole Population Trend in Ohio

All statesForest birds

Baltimore Oriole in Ohio has held roughly steady: down 5% on the route-weighted index since 1968.

-5%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 →
89Routes 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 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 18% by 2030 — from 2.4 in 2025 to a central estimate of 2.9 (95% range 1.5–4.2). A 5-year backtest shows a typical error of ±24.1%, with 100% of held-out values landing inside the 95% band.

+18%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 →
2.9Projected 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 →
1.5–4.295% 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 →
±24.1%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 18% by 2030 — from 2.4 in 2025 to a central estimate of 2.9 (95% range 1.5–4.2). A 5-year backtest shows a typical error of ±24.1%, 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 →
20262.91.64.2
20272.91.64.2
20282.91.64.2
20292.91.54.2
20302.91.54.2

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
Kings Creek1120151992
Pittsfield820241992
Wilmington819961966
Lenox720251966
Coal Run719811966
Stonecreek720251996
Bloomville620251992
Garrettsvile619911966
Harveysburg619961966
Rome620251967
Enon620251986
Herner Crns520251967
Kenton520251968
Dresden520251966
Keene520231992
Lockport420251968
Graytown419841966
Troy419961966
Marion420221966
Baxter Ridge420251998
Newcomerstwn419951966
West Elkton420121993
Dunlap419881966
Valley City420251995

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 2026-08-14.