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

Broad-winged Hawk Population Trend in Vermont

All statesGeneralists

Broad-winged Hawk in Vermont has surged: up 216% on the route-weighted index since 1968.

+216%Since 1968
25Routes In State
54Years

Notable Broad-winged Hawk Trends in Vermont

long arc increasecomputed index

Broad-winged Hawk has surged in Vermont: up 216% on the route-weighted index since 1968.

Broad-winged Hawk Population Forecast in Vermont

If the recent trend holds, Broad-winged Hawk in Vermont is projected to fall about 26% by 2029 — from 0.44 in 2024 to a central estimate of 0.33 (95% range 0.09–0.56). A 5-year backtest shows a typical error of ±47.3%, with 80% of held-out values landing inside the 95% band.

-26%Change by 2029
0.33Projected 2029 index
0.09–0.5695% range
±47.3%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
20250.320.080.55
20260.320.080.55
20270.320.090.56
20280.330.090.56
20290.330.090.56

Broad-winged Hawk Survey Routes in Vermont

Routes recording Broad-winged Hawk in Vermont.
Stratton220241978
Landgrove220231974
S Reading220241971
Middlesex220241968
East Calais220191966
Stowe220221991
Marlboro120161995
North Pownal120222022
Gaysville120181978
Post Mills120151980
Shaftsbury120231975
S Wallingfrd120221981
W Rutland120221979
St Johnsbury120211973
East Haven120241975
Northfld Fls120211986
Newbury120041998
Hardwick120241966
Greensboro120151967
Fletcher120161993
Waterville119671967
Hinesburg119931993
Colchester120211995
Grand Isle119871987
Newbury 2120222005

Broad-winged Hawk Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvirginiawest-virginiawisconsinwyoming

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