BirdAnalyst
Species · Wisconsin · BBS 2025 Release · 1966–2024

Cooper's Hawk Population Trend in Wisconsin

All statesGeneralists

Cooper's Hawk in Wisconsin has surged: up 108% on the route-weighted index since 1970.

+108%Since 1970
82Routes In State
56Years

Notable Cooper's Hawk Trends in Wisconsin

long arc increasecomputed index

Cooper's Hawk has surged in Wisconsin: up 108% on the route-weighted index since 1970.

Cooper's Hawk Population Forecast in Wisconsin

If the recent trend holds, Cooper's Hawk in Wisconsin is projected to rise about 66% by 2029 — from 0.10 in 2024 to a central estimate of 0.16 (95% range 0.07–0.25). A 5-year backtest shows a typical error of ±70.9%, with 80% of held-out values landing inside the 95% band.

+66%Change by 2029
0.16Projected 2029 index
0.07–0.2595% range
±70.9%Backtest error
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 index95% low95% high
20250.160.070.25
20260.160.070.25
20270.160.070.25
20280.160.070.25
20290.160.070.25

Cooper's Hawk Survey Routes in Wisconsin

Routes recording Cooper's Hawk in Wisconsin.
Gilmanton220232008
Trempealeau220071987
Manawa220211979
New Lisbon220142005
N Freedom220231983
Hebron220211988
Beloit220162016
Iron River120222022
Bayfield120021993
Montreal119931993
Land O Lakes120032003
Hudson120192001
Dresser120221976
Union Twp120242003
Loraine120171971
Cumberland120161995
Weyerhauser120241988
Couderay120091978
Exeland120111990
Gilman119971975
Holway119871972
Phillips120241994
Rib Lake120031982
Merrill120122012
Irma119991995

Cooper's Hawk Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawyoming

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