BirdAnalyst
Species · BCR 30 · BBS 2025 Release · 1966–2024

Blue-winged Warbler In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastForest birds

Blue-winged Warbler in New England / Mid-Atlantic Coast has declined: down 49% on the route-weighted index since 1968.

-49%Since 1968
78Routes In Region
58Years

Notable Signals

No notable trend signals for Blue-winged Warbler in New England / Mid-Atlantic Coast. See the full index history below.

Forecast

If the recent trend holds, Blue-winged Warbler in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2029, near 0.18 (95% range 0.00–0.88). A 5-year backtest shows a typical error of ±21.8%, with 100% of held-out values landing inside the 95% band.

-7%Change by 2029
0.18Projected 2029 index
0.00–0.8895% range
±21.8%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
20250.250.000.94
20260.230.000.93
20270.210.000.91
20280.200.000.89
20290.180.000.88

Routes In New England / Mid-Atlantic Coast

Routes recording Blue-winged Warbler in New England / Mid-Atlantic Coast.
WillimanticCONNECTICUT62018
BedfordNEW-YORK51996
AlbionNEW-JERSEY41992
S BarreMASSACHUSETTS32024
Del HavenNEW-JERSEY31991
Spraguetown 2NEW-JERSEY32004
WesthamptonNEW-YORK32005
HauppaugeNEW-YORK32001
UncasvilleCONNECTICUT22024
WestbrookCONNECTICUT22006
DanburyCONNECTICUT22015
WarrenCONNECTICUT22011
Woodstock 2CONNECTICUT22024
GranbyCONNECTICUT22019
PrattvilleMASSACHUSETTS22019
BelchertownMASSACHUSETTS22024
Six PointsNEW-JERSEY22012
HolmansvilleNEW-JERSEY21996
Mt MiseryNEW-JERSEY21979
WinslowNEW-JERSEY22002
MysticCONNECTICUT12023
E HartlandCONNECTICUT11992
BuckinghamCONNECTICUT12021
WoodstockCONNECTICUT12007
No WoodburyCONNECTICUT12024

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