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

White-throated Sparrow In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGeneralists

White-throated Sparrow in New England / Mid-Atlantic Coast has collapsed: down 98% on the route-weighted index since 1968.

-98%Since 1968
28Routes In Region
46Years

Notable Signals

long arc declinecomputed index

White-throated Sparrow has collapsed in New England / Mid-Atlantic Coast: down 97% on the route-weighted index since 1968.

Forecast

If the recent trend holds, White-throated Sparrow in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2027, near 0.00 (95% range 0.00–0.20). A 5-year backtest shows a typical error of ±1412.9%, with 60% of held-out values landing inside the 95% band.

n/aChange by 2027
0.00Projected 2027 index
0.00–0.2095% range
±1412.9%Backtest error
19662027
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
20230.000.000.20
20240.000.000.20
20250.000.000.20
20260.000.000.20
20270.000.000.20

Routes In New England / Mid-Atlantic Coast

Routes recording White-throated Sparrow in New England / Mid-Atlantic Coast.
LittletonMASSACHUSETTS32006
E PepperellMASSACHUSETTS31986
WoodstockCONNECTICUT21987
Mid HaddamCONNECTICUT21994
NewburyportMASSACHUSETTS21983
PrincetonMASSACHUSETTS21976
MysticCONNECTICUT12022
E HartlandCONNECTICUT11973
No WoodburyCONNECTICUT11975
GreenwichCONNECTICUT11972
DanburyCONNECTICUT11983
WarrenCONNECTICUT11991
Cape NeddickMAINE12002
Kittery PtMAINE11995
MarionMASSACHUSETTS11969
BrocktonMASSACHUSETTS11972
MaynardMASSACHUSETTS11994
N OxfordMASSACHUSETTS11972
BelchertownMASSACHUSETTS11997
WarrenMASSACHUSETTS11980
S BarreMASSACHUSETTS12005
HoldenMASSACHUSETTS11990
Ware RiverMASSACHUSETTS12010
Cape Cod NsMASSACHUSETTS11991
BrentwoodNEW-HAMPSHIRE11992

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