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

Field Sparrow In Atlantic Northern Forest

All regionsAtlantic Northern ForestGeneralists

Field Sparrow in Atlantic Northern Forest has collapsed: down 88% on the route-weighted index since 1968.

-88%Since 1968
114Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Field Sparrow has collapsed in Atlantic Northern Forest: down 88% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Field Sparrow in Atlantic Northern Forest is projected to fall about 100% by 2029 — from 0.47 in 2024 to a central estimate of 0.00 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±370%, with 40% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.195% range
±370%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
20250.000.001.1
20260.000.001.1
20270.000.001.1
20280.000.001.1
20290.000.001.1

Routes In Atlantic Northern Forest

Routes recording Field Sparrow in Atlantic Northern Forest.
BentonMAINE81977
GreenvilleMAINE51972
DegrasseNEW-YORK52024
WestbrookMAINE41995
TurnerMAINE41996
ChesterfieldMASSACHUSETTS42024
KasoagNEW-YORK42024
CummingtonMASSACHUSETTS32014
Dexter LakeNEW-YORK31975
SabattisNEW-YORK31971
New HartfordCONNECTICUT22017
FreedomMAINE22008
CharlestonMAINE21977
HudsonMAINE21980
CheshireMASSACHUSETTS21994
SheffieldMASSACHUSETTS22022
PeterboroughNEW-HAMPSHIRE22019
FitzwilliamNEW-HAMPSHIRE22024
ConcordNEW-HAMPSHIRE22024
WilmotNEW-HAMPSHIRE22024
MarlowNEW-HAMPSHIRE22024
Crawford NotNEW-HAMPSHIRE21974
ClarksvilleNEW-HAMPSHIRE21979
GabrielsNEW-YORK21978
Tupper LakeNEW-YORK21973

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