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

Cooper's Hawk Population Trend in Alabama

All statesGeneralists

Cooper's Hawk in Alabama has surged: up 255% on the route-weighted index since 1968.

+255%Since 1968TrendPercent 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 →
90Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
48YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Cooper's Hawk Trends in AlabamaNotable 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 Alabama: up 255% on the route-weighted index since 1968.

Cooper's Hawk Population Forecast in Alabama

If the recent trend holds, Cooper's Hawk in Alabama is projected to fall about 14% by 2029 — from 0.21 in 2024 to a central estimate of 0.18 (95% range 0.10–0.26). A 5-year backtest shows a typical error of ±36.2%, with 80% of held-out values landing inside the 95% band.

-14%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 →
0.18Projected 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 →
0.10–0.2695% 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 →
±36.2%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 Alabama is projected to fall about 14% by 2029 — from 0.21 in 2024 to a central estimate of 0.18 (95% range 0.10–0.26). A 5-year backtest shows a typical error of ±36.2%, with 80% 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 →
20250.170.090.25
20260.170.090.25
20270.180.100.26
20280.180.100.26
20290.180.100.26

Cooper's Hawk Survey Routes in Alabama

Routes recording Cooper's Hawk in Alabama.
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 →
Woodville320132011
Hillsboro219661966
Trade220242018
Valhermoso Spgs219671967
Pine Grove220242004
Greensport220231995
Greensboro220032003
Borden Sprng219961996
Calebee220141997
Madrid220141995
Brooksville220211990
Lakeview220222005
Nixburg 2220102001
Vernon220112011
Dauphin Is 3220212021
Drummond220242024
St Florian120211996
Summitt119721972
Swaim120122012
Millerville120241986
Sunny Eve120131998
Smyer Lake120241998
Mt Olive120051991
Maytown120161990
Liberty120161968

Cooper's Hawk Population Trend in Other States

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

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