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

American Crow Population Trend in Indiana

All statesGeneralists

American Crow in Indiana has held roughly steady: up 8% on the route-weighted index since 1968.

+8%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 →
69Routes 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 IndianaNotable 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 Indiana. See the full index history below.

American Crow Population Forecast in Indiana

If the recent trend holds, American Crow in Indiana is projected to stay roughly flat through 2029, near 26 (95% range 14–38). A 5-year backtest shows a typical error of ±36.5%, with 80% of held-out values landing inside the 95% band.

+9%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 →
26Projected 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 →
14–3895% 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 →
±36.5%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 Indiana is projected to stay roughly flat through 2029, near 26 (95% range 14–38). A 5-year backtest shows a typical error of ±36.5%, with 80% 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 →
2025261438
2026261438
2027261438
2028261438
2029261438

American Crow Survey Routes in Indiana

Routes recording American Crow in Indiana.
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 →
Spencer10120241967
Wallace6620241999
Georgia5720241999
New Phila5620241982
Knox5020241981
W Lafayette4820241981
Vevay4520241966
Lakeville4120241993
Shelbyville3820241983
Pimento3720241981
Indian Spgs3720241982
Corydon3720241966
Celestine3420241979
Ellis3320241966
Galveston3320241981
Wabash3320241981
New Castle3220242002
Cross Plains3220241999
Clear Spring3020241981
Thorntown2920241982
Brookville2920241966
Portage2920042000
Evansville2820221966
Monticello2720241981
Laporte2520241999

American Crow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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