BirdAnalyst
Species · New York · BBS 2025 Release · 1966–2024

Cooper's Hawk Population Trend in New York

All statesGeneralists

Cooper's Hawk in New York has surged: up 765% on the route-weighted index since 1970.

+765%Since 1970TrendPercent 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 →
84Routes 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 →
52YearsYears 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 New YorkNotable 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 New York: up 765% on the route-weighted index since 1970.

Cooper's Hawk Population Forecast in New York

If the recent trend holds, Cooper's Hawk in New York is projected to fall about 36% by 2029 — from 0.15 in 2024 to a central estimate of 0.10 (95% range 0.05–0.15). A 5-year backtest shows a typical error of ±50%, with 40% of held-out values landing inside the 95% band.

-36%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 →
0.10Projected 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 →
0.05–0.1595% 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 →
±50%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 New York is projected to fall about 36% by 2029 — from 0.15 in 2024 to a central estimate of 0.10 (95% range 0.05–0.15). A 5-year backtest shows a typical error of ±50%, with 40% of held-out values landing inside the 95% band.19672029
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 →
20250.090.040.14
20260.100.040.14
20270.100.040.15
20280.100.050.15
20290.100.050.15

Cooper's Hawk Survey Routes in New York

Routes recording Cooper's Hawk in New York.
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 →
Petersburg220062006
Branchport220161995
Churchville220242006
Westhampton120242024
Huntington120222022
Hauppauge120182018
Rhinebeck120162008
Highland120121967
Westbrookvle120191980
W Shokan120062006
Mt Hope119921992
Austerlitz120012001
Catskills120151992
Ghent120211990
Medusa120041970
Meridale120171977
Cobleskill120131979
Duanesburg119941986
Platte Cove119931993
Laurens120092001
Whitney Pt120161988
Coventryvile120101982
Mcdonough120072007
Corbettsvile120191978
Oneonta120072000

Cooper's Hawk Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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