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

Swamp Sparrow In Atlantic Northern Forest

All regionsAtlantic Northern ForestGeneralists

Swamp Sparrow in Atlantic Northern Forest has held roughly steady: up 9% on the route-weighted index since 1968.

+9%Since 1968
141Routes In Region
58Years

Notable Signals

No notable trend signals for Swamp Sparrow in Atlantic Northern Forest. See the full index history below.

Forecast

If the recent trend holds, Swamp Sparrow in Atlantic Northern Forest is projected to fall about 14% by 2029 — from 2.0 in 2024 to a central estimate of 1.7 (95% range 1.3–2.1). A 5-year backtest shows a typical error of ±6.4%, with 100% of held-out values landing inside the 95% band.

-14%Change by 2029
1.7Projected 2029 index
1.3–2.195% range
±6.4%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
20251.71.22.1
20261.71.22.1
20271.71.32.1
20281.71.32.1
20291.71.32.1

Routes In Atlantic Northern Forest

Routes recording Swamp Sparrow in Atlantic Northern Forest.
W RutlandVERMONT132024
HardwickVERMONT92024
NorthfieldMAINE81981
Carrying PlMAINE72024
Forest StaMAINE62000
WilmotNEW-HAMPSHIRE62024
MarlowNEW-HAMPSHIRE62024
Horseshoe L.NEW-YORK62017
StoweVERMONT62024
WaiteMAINE51977
SpeculatorNEW-YORK52024
WanakenaNEW-YORK52024
GabrielsNEW-YORK52024
SabattisNEW-YORK51983
TurnerMAINE42002
GreenwoodMAINE42024
BentonMAINE41971
Grnd Lk StrmMAINE42000
ChesterfieldMASSACHUSETTS42024
PittsfieldMASSACHUSETTS42016
Mt ChocoruaNEW-HAMPSHIRE42024
Blue Ridge SNEW-YORK42010
Dexter LakeNEW-YORK41975
BethelMAINE32019
ReedsMAINE32024

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