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

Saltmarsh Sparrow In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGeneralists

Saltmarsh Sparrow in New England / Mid-Atlantic Coast has fallen sharply: down 68% on the route-weighted index since 1968.

-68%Since 1968
14Routes In Region
33Years

Notable Signals

long arc declinecomputed index

Saltmarsh Sparrow has fallen sharply in New England / Mid-Atlantic Coast: down 68% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Saltmarsh Sparrow in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2028, near 0.05 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±138.1%, with 80% of held-out values landing inside the 95% band.

n/aChange by 2028
0.05Projected 2028 index
0.00–0.1195% range
±138.1%Backtest error
19662028
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
20240.040.000.11
20250.050.000.11
20260.050.000.11
20270.050.000.11
20280.050.000.11

Routes In New England / Mid-Atlantic Coast

Routes recording Saltmarsh Sparrow in New England / Mid-Atlantic Coast.
Bethany BchDELAWARE51966
HongaMARYLAND31969
HarringtonDELAWARE22023
NewburyportMASSACHUSETTS22007
DoverDELAWARE11974
Lowes XrdsDELAWARE11978
CokesburyMARYLAND11997
Ocean CityNEW-JERSEY11986
WesthamptonNEW-YORK12006
HuntingtonNEW-YORK11995
Jones BeachNEW-YORK11995
Sachuest PtRHODE-ISLAND11978
Block IslandRHODE-ISLAND11989
Chincoteag WVIRGINIA12012

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