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

Magnolia Warbler Population Trend in Vermont

All statesForest birds

Magnolia Warbler in Vermont has surged: up 150% on the route-weighted index since 1968.

+150%Since 1968
24Routes In State
58Years

Notable Magnolia Warbler Trends in Vermont

long arc increasecomputed index

Magnolia Warbler has surged in Vermont: up 150% on the route-weighted index since 1968.

Magnolia Warbler Population Forecast in Vermont

If the recent trend holds, Magnolia Warbler in Vermont is projected to rise about 29% by 2029 — from 1.2 in 2024 to a central estimate of 1.6 (95% range 0.22–2.9). A 5-year backtest shows a typical error of ±66.9%, with 100% of held-out values landing inside the 95% band.

+29%Change by 2029
1.6Projected 2029 index
0.22–2.995% range
±66.9%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
20251.60.222.9
20261.60.222.9
20271.60.222.9
20281.60.222.9
20291.60.222.9

Magnolia Warbler Survey Routes in Vermont

Routes recording Magnolia Warbler in Vermont.
Fletcher820131983
East Haven620241968
Newbury 2520232005
Stratton420241967
Hardwick420241973
Post Mills319941967
East Calais320241967
Middlesex220241968
Greensboro220231967
Stowe220221988
Marlboro120241986
North Pownal119671967
Landgrove120241966
S Reading120091968
Gaysville120001978
Shaftsbury120151977
S Wallingfrd120001976
W Rutland120171992
St Johnsbury120241970
Northfld Fls120211980
Newbury120041987
Waterville119801980
Hinesburg119781970
Grand Isle119931993

Magnolia Warbler Population Trend in Other States

connecticutmainemarylandmassachusettsmichiganminnesotanew-hampshirenew-jerseynew-yorknorth-carolinaohiopennsylvaniavirginiawest-virginiawisconsin

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