BirdAnalyst
Species · BCR 14 · BBS 2025 Release · 1966–2024

Warbling Vireo In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Warbling Vireo in Atlantic Northern Forest has surged: up 93% on the route-weighted index since 1968.

+93%Since 1968
139Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Warbling Vireo has surged in Atlantic Northern Forest: up 93% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Warbling Vireo in Atlantic Northern Forest is projected to stay roughly flat through 2029, near 1.4 (95% range 0.76–2.1). A 5-year backtest shows a typical error of ±9.5%, with 100% of held-out values landing inside the 95% band.

+8%Change by 2029
1.4Projected 2029 index
0.76–2.195% range
±9.5%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
20251.40.742.1
20261.40.752.1
20271.40.752.1
20281.40.762.1
20291.40.762.1

Routes In Atlantic Northern Forest

Routes recording Warbling Vireo in Atlantic Northern Forest.
FletcherVERMONT122024
Otisfield GrMAINE112015
Seboomook LkMAINE112010
TurnerMAINE82010
W RutlandVERMONT62024
StacyvilleMAINE52023
MontereyMASSACHUSETTS52024
MarlowNEW-HAMPSHIRE52024
S WallingfrdVERMONT52022
WatervilleVERMONT51980
HarmonyMAINE42024
Carrying PlMAINE42015
MedwayMAINE42018
ChesterfieldMASSACHUSETTS42024
ConcordNEW-HAMPSHIRE42024
Dixvil NotchNEW-HAMPSHIRE42008
GaysvilleVERMONT42021
HartfordMAINE32024
ManchesterMAINE31995
East TroyMAINE31996
WarrenMAINE31990
NorthfieldMAINE31978
WashburnMAINE32005
Ft FairfieldMAINE32005
RomeMAINE32024

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