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Species · Connecticut · BBS 2025 Release · 1966–2024

Cooper's Hawk Population Trend in Connecticut

All statesGeneralists

Cooper's Hawk in Connecticut has increased: up 38% on the route-weighted index since 1981.

+38%Since 1981
17Routes In State
24Years

Notable Cooper's Hawk Trends in Connecticut

No notable trend signals for Cooper's Hawk in Connecticut. See the full index history below.

Cooper's Hawk Population Forecast in Connecticut

If the recent trend holds, Cooper's Hawk in Connecticut is projected to rise about 71% by 2027 — from 0.09 in 2022 to a central estimate of 0.16 (95% range 0.04–0.27). A 5-year backtest shows a typical error of ±77.5%, with 100% of held-out values landing inside the 95% band.

+71%Change by 2027
0.16Projected 2027 index
0.04–0.2795% range
±77.5%Backtest error
19732027
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
20230.150.040.26
20240.150.040.27
20250.150.040.27
20260.150.040.27
20270.160.040.27

Cooper's Hawk Survey Routes in Connecticut

Routes recording Cooper's Hawk in Connecticut.
Mystic120211987
Buckingham120142014
Uncasville120152015
Woodstock119811973
Westbrook120192019
Willimantic120052005
No Woodbury120122002
Sherman119821982
Greenwich120092009
Danbury120152015
Warren120021980
New Hartford120171999
Mid Haddam120151973
Southington120162005
Woodstock 2120162016
Warren 2120222022
Granby120212015

Cooper's Hawk Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradodelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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