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

Field Sparrow In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGeneralists

Field Sparrow in New England / Mid-Atlantic Coast has collapsed: down 83% on the route-weighted index since 1968.

-83%Since 1968
157Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Field Sparrow has collapsed in New England / Mid-Atlantic Coast: down 83% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Field Sparrow in New England / Mid-Atlantic Coast is projected to fall about 100% by 2029 — from 2.3 in 2024 to a central estimate of 0.00 (95% range 0.00–2.8). A 5-year backtest shows a typical error of ±110.6%, with 80% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–2.895% range
±110.6%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
20250.000.002.8
20260.000.002.8
20270.000.002.8
20280.000.002.8
20290.000.002.8

Routes In New England / Mid-Atlantic Coast

Routes recording Field Sparrow in New England / Mid-Atlantic Coast.
BlackbirdDELAWARE172024
Pt RepublicMARYLAND141989
Lowes XrdsDELAWARE121991
DavidsnvilleMARYLAND102024
PedricktownNEW-JERSEY102012
Pedricktown 2NEW-JERSEY102024
La PlataMARYLAND92009
HolmansvilleNEW-JERSEY92009
VillasNEW-JERSEY91981
HughesvilleMARYLAND82024
Snow HillMARYLAND81976
DeepwaterNEW-JERSEY81977
TruhartVIRGINIA82024
MillsboroDELAWARE72024
Holleyville 2DELAWARE72024
CheltenhamMARYLAND72004
Piney NeckMARYLAND72024
NewarkMARYLAND72024
CranburyNEW-JERSEY72023
HolleyvilleDELAWARE62004
HarmonyMARYLAND62017
Forest GroveMARYLAND62023
WalnutMARYLAND62024
Woodbury HgtNEW-JERSEY62024
WalkersVIRGINIA62023

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