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Species · Ohio · BBS 2025 Release · 1966–2024

American Crow Population Trend in Ohio

All statesGeneralists

American Crow in Ohio has increased: up 29% on the route-weighted index since 1968.

+29%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 →
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 American Crow 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 American Crow in Ohio. See the full index history below.

American Crow Population Forecast in Ohio

If the recent trend holds, American Crow in Ohio is projected to rise about 19% by 2029 — from 29 in 2024 to a central estimate of 35 (95% range 25–44). A 5-year backtest shows a typical error of ±28.5%, with 60% of held-out values landing inside the 95% band.

+19%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 →
35Projected 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 →
25–4495% 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, American Crow in Ohio is projected to rise about 19% by 2029 — from 29 in 2024 to a central estimate of 35 (95% range 25–44). A 5-year backtest shows a typical error of ±28.5%, with 60% 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 →
2025342544
2026342544
2027352544
2028352544
2029352544

American Crow Survey Routes in Ohio

Routes recording American Crow 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 →
Coshocton11619911990
Dresden6920241966
Keene6620231992
Lucerne6120241992
Tick Ridge6120191993
Garrettsvile5919911966
Coal Run5919921966
Rome5820241966
Birmingham5420241988
Baxter Ridge5320231998
Bloomville4920241992
Harveysburg4719961966
Wayne N.F.4520241992
Lenox4220241966
Tecumseh4219821966
South Olive4120241993
Greasy Ridge4019911966
Adamsville3919891971
Omega3820241966
Kunkle3720241992
Strongsville3719951966
New Somerset3719931966
Wayland3620171992
Bolins Mills3620241966
Smithfield3520241966

American Crow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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