BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Cooper's Hawk In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieGeneralists

Cooper's Hawk in Central Mixed Grass Prairie has surged: up 200% on the route-weighted index since 1981.

+200%Since 1981TrendPercent 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 →
59Routes 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 →
38YearsYears 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Cooper's Hawk has surged in Central Mixed Grass Prairie: up 200% on the route-weighted index since 1981.

Cooper's Hawk In Central Mixed Grass Prairie Population Forecast

If the recent trend holds, Cooper's Hawk in Central Mixed Grass Prairie is projected to rise about 25% by 2029 — from 0.07 in 2024 to a central estimate of 0.09 (95% range 0.04–0.15). A 5-year backtest shows a typical error of ±24%, with 100% of held-out values landing inside the 95% band.

+25%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 →
0.09Projected 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 →
0.04–0.1595% 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 →
±24%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, Cooper's Hawk in Central Mixed Grass Prairie is projected to rise about 25% by 2029 — from 0.07 in 2024 to a central estimate of 0.09 (95% range 0.04–0.15). A 5-year backtest shows a typical error of ±24%, with 100% of held-out values landing inside the 95% band.19702029
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 →
20250.090.030.14
20260.090.030.15
20270.090.040.15
20280.090.040.15
20290.090.040.15

Routes In Central Mixed Grass Prairie

Routes recording Cooper's Hawk in Central Mixed Grass 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 →
BuckeyeKANSAS32014
Beloit 2KANSAS22017
KearneyNEBRASKA22011
WellingtonKANSAS12022
DaltonKANSAS12022
ColdwaterKANSAS12021
AshlandKANSAS12016
AlbertKANSAS12024
KanopolisKANSAS12023
GrayKANSAS12018
LeovilleKANSAS12014
HanoverKANSAS12014
MinneapolisKANSAS12006
CovertKANSAS12024
PhillipsburgKANSAS12011
GoveKANSAS12022
BerwetKANSAS12024
GoesselKANSAS12004
SusankKANSAS12005
Ash ValleyKANSAS12014
JamestownKANSAS12011
BelvidereNEBRASKA12023
SumnerNEBRASKA12019
SurpriseNEBRASKA12021
KennedyNEBRASKA12005

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