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

Nashville Warbler Population Trend in Vermont

All statesForest birds

Nashville Warbler in Vermont has edged down: down 13% on the route-weighted index since 1968.

-13%Since 1968
24Routes In State
58Years

Notable Nashville Warbler Trends in Vermont

No notable trend signals for Nashville Warbler in Vermont. See the full index history below.

Nashville Warbler Population Forecast in Vermont

If the recent trend holds, Nashville Warbler in Vermont is projected to stay roughly flat through 2029, near 0.55 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±15.6%, with 100% of held-out values landing inside the 95% band.

-1%Change by 2029
0.55Projected 2029 index
0.00–1.595% range
±15.6%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
20250.590.001.5
20260.580.001.5
20270.570.001.5
20280.560.001.5
20290.550.001.5

Nashville Warbler Survey Routes in Vermont

Routes recording Nashville Warbler in Vermont.
Newbury 2520232009
East Calais420241966
S Reading319981968
Newbury319941987
East Haven220241972
Waterville219801980
Marlboro119911969
North Pownal119921979
Stratton120241969
Landgrove120231968
Gaysville120101981
Post Mills120041967
Shaftsbury120231978
S Wallingfrd119971982
W Rutland120141989
St Johnsbury120231970
Northfld Fls120141980
Middlesex120241968
Hardwick120241972
Greensboro120241967
Fletcher120091983
Hinesburg119861977
Colchester120051993
Stowe120101991

Nashville Warbler Population Trend in Other States

californiaconnecticutidahomainemarylandmassachusettsmichiganminnesotamontananew-hampshirenew-jerseynew-yorknorth-dakotaoregonpennsylvaniarhode-islandvirginiawashingtonwest-virginiawisconsin

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