BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

American Crow In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieGeneralists

American Crow in Eastern Tallgrass Prairie has edged up: up 18% on the route-weighted index since 1968.

+18%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 →
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 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 stay roughly flat through 2029, near 22 (95% range 14–30). A 5-year backtest shows a typical error of ±13.1%, with 100% of held-out values landing inside the 95% band.

+3%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 →
22Projected 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 →
14–3095% 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 →
±13.1%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, American Crow in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 22 (95% range 14–30). A 5-year backtest shows a typical error of ±13.1%, with 100% 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 →
2025221430
2026221430
2027221430
2028221430
2029221430

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 →
FloraILLINOIS1092024
AthensILLINOIS882024
WrefordKANSAS882024
MilfordMISSOURI742024
WallaceINDIANA662024
LucerneMISSOURI662021
DoverKANSAS592022
BudaILLINOIS582023
BarclayKANSAS572024
New HamptonMISSOURI572024
Mt VernonILLINOIS532024
AldenILLINOIS522023
MoreheadKANSAS522024
EmdenMISSOURI512024
Le LoupKANSAS492021
OhioMISSOURI492024
BloomvilleOHIO492024
W LafayetteINDIANA482024
KellILLINOIS472024
Trading PostKANSAS472024
HarveysburgOHIO471996
JohnsonNEBRASKA462024
HudsonIOWA452022
FilleyMISSOURI452024
KeetonvilleOKLAHOMA452022

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