BirdAnalyst
Species · BCR 23 · BBS 2025 Release · 1966–2024

Cooper's Hawk In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionGeneralists

Cooper's Hawk in Prairie Hardwood Transition has surged: up 146% on the route-weighted index since 1969.

+146%Since 1969TrendPercent 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 →
141Routes 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 →
57YearsYears 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 Prairie Hardwood Transition: up 146% on the route-weighted index since 1969.

Cooper's Hawk In Prairie Hardwood Transition Population Forecast

If the recent trend holds, Cooper's Hawk in Prairie Hardwood Transition is projected to rise about 66% by 2029 — from 0.14 in 2024 to a central estimate of 0.23 (95% range 0.14–0.32). A 5-year backtest shows a typical error of ±55.4%, with 40% of held-out values landing inside the 95% band.

+66%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 →
0.23Projected 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 →
0.14–0.3295% 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 →
±55.4%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 Prairie Hardwood Transition is projected to rise about 66% by 2029 — from 0.14 in 2024 to a central estimate of 0.23 (95% range 0.14–0.32). A 5-year backtest shows a typical error of ±55.4%, with 40% 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 →
20250.210.130.30
20260.220.130.31
20270.220.130.31
20280.220.130.31
20290.230.140.32

Routes In Prairie Hardwood Transition

Routes recording Cooper's Hawk in Prairie Hardwood Transition.
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 →
CohoctahMICHIGAN32023
KnappMINNESOTA31997
MiddleburyINDIANA22024
New TroyMICHIGAN22014
St CharlesMICHIGAN22010
HomerMICHIGAN22006
DeckervilleMICHIGAN22016
RichmondMICHIGAN22017
Barry S.G.A. 2MICHIGAN22015
OsseoMINNESOTA22019
St StephenMINNESOTA22006
EdwardsMINNESOTA22024
LimestoneOHIO22017
GilmantonWISCONSIN22023
TrempealeauWISCONSIN22007
ManawaWISCONSIN22021
New LisbonWISCONSIN22014
N FreedomWISCONSIN22023
HebronWISCONSIN22021
BeloitWISCONSIN22016
GuilfordILLINOIS12017
Cherry ValILLINOIS11998
Cherry Val 2ILLINOIS12018
Lake GalenaILLINOIS12018
South BendINDIANA11991

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