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

Black-throated Green Warbler In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Black-throated Green Warbler in Atlantic Northern Forest has surged: up 139% on the route-weighted index since 1968.

+139%Since 1968
155Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Black-throated Green Warbler has surged in Atlantic Northern Forest: up 139% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Black-throated Green Warbler in Atlantic Northern Forest is projected to rise about 64% by 2029 — from 4.0 in 2024 to a central estimate of 6.6 (95% range 4.4–8.8). A 5-year backtest shows a typical error of ±77%, with 0% of held-out values landing inside the 95% band.

+64%Change by 2029
6.6Projected 2029 index
4.4–8.895% range
±77%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
20256.34.18.6
20266.44.28.6
20276.54.28.7
20286.54.38.8
20296.64.48.8

Routes In Atlantic Northern Forest

Routes recording Black-throated Green Warbler in Atlantic Northern Forest.
NorthfieldMAINE851981
InletNEW-YORK322017
CooperMAINE302021
WaiteMAINE271977
EastbrookMAINE242024
Old ForgeNEW-YORK232006
Wilson MillsMAINE212024
SabattisNEW-YORK211983
Seboomook LkMAINE202014
Blue Ridge SNEW-YORK172010
BrooksMAINE162019
NesowadnehunMAINE152021
Dixvil NotchNEW-HAMPSHIRE152017
Dexter LakeNEW-YORK151975
Old Forge 2NEW-YORK152019
Grnd Lk StrmMAINE132000
AndoverMAINE132021
Dixville Notch 2NEW-HAMPSHIRE132024
StoweVERMONT132024
ChesterfieldMASSACHUSETTS122024
MedwayMAINE112018
TopsfieldMAINE111996
ClarksvilleNEW-HAMPSHIRE112024
CummingtonMASSACHUSETTS102014
PittsfieldMASSACHUSETTS92016

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