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

Fish Crow In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieGeneralists

Fish Crow in Eastern Tallgrass Prairie has surged: up 28× on the route-weighted index since 1999.

28×Since 1999TrendPercent 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 →
42Routes 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 →
27YearsYears 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 Fish Crow in Eastern Tallgrass Prairie. See the full index history below.

Fish Crow In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, Fish Crow in Eastern Tallgrass Prairie is projected to fall about 28% by 2030 — from 0.39 in 2025 to a central estimate of 0.28 (95% range 0.17–0.39). A 5-year backtest shows a typical error of ±30.9%, with 80% of held-out values landing inside the 95% band.

-28%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 →
0.28Projected 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 →
0.17–0.3995% 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 →
±30.9%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, Fish Crow in Eastern Tallgrass Prairie is projected to fall about 28% by 2030 — from 0.39 in 2025 to a central estimate of 0.28 (95% range 0.17–0.39). A 5-year backtest shows a typical error of ±30.9%, with 80% of held-out values landing inside the 95% band.19942030
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 →
20260.240.130.36
20270.250.140.36
20280.260.150.37
20290.270.160.38
20300.280.170.39

Routes In Eastern Tallgrass Prairie

Routes recording Fish 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 →
Mascoutah LkILLINOIS172025
PittsburgKANSAS102021
OhioMISSOURI72025
KeetonvilleOKLAHOMA72022
BeaucoupILLINOIS62025
Mt VernonILLINOIS62025
MelroseKANSAS62023
FilleyMISSOURI52025
DudleyvilleILLINOIS42025
PaysonILLINOIS32017
KellILLINOIS32025
HumboldtKANSAS32022
KingsvilleMISSOURI32024
WatsonMISSOURI32025
GeraldMISSOURI32025
St MorganILLINOIS22022
WrefordKANSAS22024
MoreheadKANSAS22023
MillwoodMISSOURI22025
HarrisonvilleMISSOURI22025
House SpringsMISSOURI22025
MilfordMISSOURI22025
MoselleMISSOURI22024
GulfportILLINOIS12023
BelleviewILLINOIS12025

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