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

American Crow Population Trend in Indiana

All statesGeneralists

American Crow in Indiana has held roughly steady: up 2% on the route-weighted index since 1968.

+2%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 →
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 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 rise about 32% by 2030 — from 19 in 2025 to a central estimate of 26 (95% range 14–37). A 5-year backtest shows a typical error of ±25.3%, with 100% of held-out values landing inside the 95% band.

+32%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 →
26Projected 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 →
14–3795% 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 →
±25.3%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 rise about 32% by 2030 — from 19 in 2025 to a central estimate of 26 (95% range 14–37). A 5-year backtest shows a typical error of ±25.3%, 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 →
2026261438
2027261438
2028261438
2029261438
2030261437

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
Georgia4420251999
Knox4320251981
Witts Station4220252000
Lakeville4120241993
Packertown 23720252005
Wabash3620251981
Jamestown3620251986
Brookville3620251966
New Phila3620251982
Pimento3420251981
Ellis3320241966
Indian Spgs3320251982
Corydon3320251966
Vevay3320251966
Cross Plains3320251999
New Castle3220242002
Portage2920042000
Evansville2820221966
Cumback2720251966
Laporte2520241999
Galveston2420251981
South Bend2319911966
Packertown2320041967

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 2026-08-14.