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

Pine Warbler In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Pine Warbler in Atlantic Northern Forest has surged: up 60× on the route-weighted index since 1968.

60×Since 1968
117Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Pine Warbler has surged in Atlantic Northern Forest: up 60× on the route-weighted index since 1968.

Forecast

If the recent trend holds, Pine Warbler in Atlantic Northern Forest is projected to fall about 21% by 2029 — from 5.9 in 2024 to a central estimate of 4.6 (95% range 2.8–6.4). A 5-year backtest shows a typical error of ±48.5%, with 0% of held-out values landing inside the 95% band.

-21%Change by 2029
4.6Projected 2029 index
2.8–6.495% range
±48.5%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
20254.22.56.0
20264.32.66.1
20274.42.76.2
20284.52.86.3
20294.62.86.4

Routes In Atlantic Northern Forest

Routes recording Pine Warbler in Atlantic Northern Forest.
BrooksMAINE202019
MarlboroVERMONT182024
FitzwilliamNEW-HAMPSHIRE172024
CharlestonMAINE152019
WinnMAINE152022
Mt ChocoruaNEW-HAMPSHIRE152024
TurnerMAINE142010
CanterburyNEW-HAMPSHIRE142024
WilmotNEW-HAMPSHIRE142024
ReedsMAINE132024
AuroraMAINE132021
Carrying PlMAINE132024
N OrangeMASSACHUSETTS132024
ConcordNEW-HAMPSHIRE132024
LempsterNEW-HAMPSHIRE132024
HopkintonNEW-HAMPSHIRE122024
GreenwoodMAINE112024
MedwayMAINE112018
Turner 2MAINE112024
Bowdoin CtrMAINE102021
CornvilleMAINE102024
DegrasseNEW-YORK102024
WestbrookMAINE92024
East TroyMAINE92019
Brownfield 2MAINE92024

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