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

Blackpoll Warbler Population Trend in Vermont

All statesForest birds

Blackpoll Warbler in Vermont has held roughly steady: down 10% on the route-weighted index since 1972.

-10%Since 1972
11Routes In State
18Years

Notable Blackpoll Warbler Trends in Vermont

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

Blackpoll Warbler Population Forecast in Vermont

If the recent trend holds, Blackpoll Warbler in Vermont is projected to stay roughly flat through 2028, near 0.05 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±48.4%, with 100% of held-out values landing inside the 95% band.

-7%Change by 2028
0.05Projected 2028 index
0.00–0.1695% range
±48.4%Backtest error
19682028
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
20240.060.000.16
20250.060.000.16
20260.050.000.16
20270.050.000.16
20280.050.000.16

Blackpoll Warbler Survey Routes in Vermont

Routes recording Blackpoll Warbler in Vermont.
Middlesex220082008
Stratton120211972
Landgrove119901989
Post Mills120182016
St Johnsbury119741974
East Haven119741974
Northfld Fls119961996
East Calais120231968
Greensboro120041970
Fletcher120222022
Stowe120071996

Blackpoll Warbler Population Trend in Other States

alaskamainemassachusettsnew-hampshirenew-yorkpennsylvania

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