BirdAnalyst
Species · BCR 22 · BBS 2026 Release · 1966–2025

American Crow In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieGeneralists

American Crow in Eastern Tallgrass Prairie has edged up: up 13% on the route-weighted index since 1968.

+13%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 →
277Routes In RegionSurvey 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 SignalsNotable 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 Eastern Tallgrass Prairie. See the full index history below.

American Crow In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, American Crow in Eastern Tallgrass Prairie is projected to rise about 11% by 2030 — from 20 in 2025 to a central estimate of 22 (95% range 14–30). A 5-year backtest shows a typical error of ±7.6%, with 100% of held-out values landing inside the 95% band.

+11%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 →
22Projected 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 →
14–3095% 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 →
±7.6%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 Eastern Tallgrass Prairie is projected to rise about 11% by 2030 — from 20 in 2025 to a central estimate of 22 (95% range 14–30). A 5-year backtest shows a typical error of ±7.6%, 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 →
2026221429
2027221429
2028221429
2029221430
2030221430

Routes In Eastern Tallgrass Prairie

Routes recording American Crow in Eastern Tallgrass Prairie.
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 →
DudleyvilleILLINOIS1212025
Mt VernonILLINOIS1102025
FloraILLINOIS1092024
MilfordILLINOIS1052025
WrefordKANSAS882024
WallaceINDIANA662024
Lake SummersetILLINOIS652025
BarclayKANSAS652025
Mt HamillIOWA622025
McfallMISSOURI602025
DoverKANSAS592022
BudaILLINOIS582023
ReeceKANSAS572025
Le RoyMINNESOTA532025
HudsonIOWA512025
EmdenMISSOURI512024
LucerneMISSOURI502025
Le LoupKANSAS492021
FilleyMISSOURI482025
River FallsWISCONSIN482025
AthensILLINOIS472025
HarveysburgOHIO471996
GalesburgKANSAS462025
KeetonvilleOKLAHOMA452022
MartinsvilleILLINOIS442025

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.