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Species · Pennsylvania · BBS 2025 Release · 1966–2024

Red-shouldered Hawk Population Trend in Pennsylvania

All statesGeneralists

Red-shouldered Hawk in Pennsylvania has surged: up 344% on the route-weighted index since 1968.

+344%Since 1968
92Routes In State
58Years

Notable Red-shouldered Hawk Trends in Pennsylvania

long arc increasecomputed index

Red-shouldered Hawk has surged in Pennsylvania: up 344% on the route-weighted index since 1968.

Red-shouldered Hawk Population Forecast in Pennsylvania

If the recent trend holds, Red-shouldered Hawk in Pennsylvania is projected to fall about 44% by 2029 — from 0.32 in 2024 to a central estimate of 0.18 (95% range 0.08–0.27). A 5-year backtest shows a typical error of ±36.1%, with 40% of held-out values landing inside the 95% band.

-44%Change by 2029
0.18Projected 2029 index
0.08–0.2795% range
±36.1%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
20250.170.070.26
20260.170.070.26
20270.170.080.27
20280.170.080.27
20290.180.080.27

Red-shouldered Hawk Survey Routes in Pennsylvania

Routes recording Red-shouldered Hawk in Pennsylvania.
Peters Mt319741973
Harrisville320161997
Stoneybreak320242000
Clover220242009
Harmonsburg220231977
Rasselas220221969
Mawr Glen220171975
Greentown220241973
Canadensis220241971
Bald Eagle220002000
Peru Mills220231993
Naginey220241977
Warrens Mill220242021
Doe Run220242009
Starlight 2220242017
Espyville120241970
Ferris Crnrs120232005
Whig Hill120131966
Akeley119741968
Teepleville120191977
Sigel120131997
Lynch120171970
N Washington120212021
N Pine Grove120161971
Pottersdale120141968

Red-shouldered Hawk Population Trend in Other States

alabamaarkansascaliforniaconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomaoregonrhode-islandsouth-carolinatennesseetexasvermontvirginiawashingtonwest-virginiawisconsin

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