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

Black-and-white Warbler Population Trend in Vermont

All statesForest birds

Black-and-white Warbler in Vermont has surged: up 168% on the route-weighted index since 1968.

+168%Since 1968
26Routes In State
58Years

Notable Black-and-white Warbler Trends in Vermont

long arc increasecomputed index

Black-and-white Warbler has surged in Vermont: up 168% on the route-weighted index since 1968.

Black-and-white Warbler Population Forecast in Vermont

If the recent trend holds, Black-and-white Warbler in Vermont is projected to rise about 16% by 2029 — from 3.2 in 2024 to a central estimate of 3.7 (95% range 1.7–5.6). A 5-year backtest shows a typical error of ±34.9%, with 100% of held-out values landing inside the 95% band.

+16%Change by 2029
3.7Projected 2029 index
1.7–5.695% range
±34.9%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
20253.61.65.5
20263.61.65.6
20273.61.65.6
20283.61.75.6
20293.71.75.6

Black-and-white Warbler Survey Routes in Vermont

Routes recording Black-and-white Warbler in Vermont.
Marlboro1120241966
Gaysville920211966
Newbury 2820232005
Post Mills620241966
East Haven620241967
Hardwick620241967
Stowe620241988
Shaftsbury520241968
Hinesburg519941977
Northfld Fls420211980
Landgrove320241966
S Wallingfrd320221969
W Rutland320241972
East Calais320241966
Fletcher320241968
St Johnsbury220241970
Newbury220021987
Waterville219801979
Bristol220181995
North Pownal120211966
Stratton120241966
S Reading120241966
Middlesex120241968
Greensboro120221967
Colchester120091986

Black-and-white Warbler Population Trend in Other States

alabamaarkansascaliforniaconnecticutdelawaregeorgiaillinoisindianakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvirginiawest-virginiawisconsinwyoming

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