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

Black-and-white Warbler In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Black-and-white Warbler in Atlantic Northern Forest has risen sharply: up 72% on the route-weighted index since 1968.

+72%Since 1968
155Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Black-and-white Warbler has risen sharply in Atlantic Northern Forest: up 72% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Black-and-white Warbler in Atlantic Northern Forest is projected to stay roughly flat through 2029, near 4.5 (95% range 2.4–6.6). A 5-year backtest shows a typical error of ±2.8%, with 100% of held-out values landing inside the 95% band.

-1%Change by 2029
4.5Projected 2029 index
2.4–6.695% range
±2.8%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
20254.52.46.6
20264.52.46.6
20274.52.46.6
20284.52.46.6
20294.52.46.6

Routes In Atlantic Northern Forest

Routes recording Black-and-white Warbler in Atlantic Northern Forest.
NorthfieldMAINE481981
ChesterfieldMASSACHUSETTS282024
InletNEW-YORK182017
CooperMAINE172021
East TroyMAINE162019
BrooksMAINE162019
CharlestonMAINE162019
MedwayMAINE162018
HudsonMAINE162016
LempsterNEW-HAMPSHIRE162024
HarmonyMAINE152024
HermonMAINE152019
Seboomook LkMAINE132014
N OrangeMASSACHUSETTS132024
TopsfieldMAINE121996
AuroraMAINE112021
WaiteMAINE111977
SearsportMAINE112024
WanakenaNEW-YORK112024
MarlboroVERMONT112024
Forest StaMAINE102000
StacyvilleMAINE92024
PittsfieldMASSACHUSETTS92016
FitzwilliamNEW-HAMPSHIRE92024
GaysvilleVERMONT92021

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