BirdAnalyst
Species · BCR 13 · BBS 2025 Release · 1966–2024

Field Sparrow In Lower Great Lakes / St. Lawrence Plain

All regionsLower Great Lakes / St. Lawrence PlainGeneralists

Field Sparrow in Lower Great Lakes / St. Lawrence Plain has fallen sharply: down 61% on the route-weighted index since 1968.

-61%Since 1968
84Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Field Sparrow has fallen sharply in Lower Great Lakes / St. Lawrence Plain: down 61% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Field Sparrow in Lower Great Lakes / St. Lawrence Plain is projected to fall about 74% by 2029 — from 4.9 in 2024 to a central estimate of 1.3 (95% range 0.00–3.9). A 5-year backtest shows a typical error of ±69.6%, with 0% of held-out values landing inside the 95% band.

-74%Change by 2029
1.3Projected 2029 index
0.00–3.995% range
±69.6%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
20251.80.004.4
20261.70.004.3
20271.50.004.1
20281.40.004.0
20291.30.003.9

Routes In Lower Great Lakes / St. Lawrence Plain

Routes recording Field Sparrow in Lower Great Lakes / St. Lawrence Plain.
ChurchvilleNEW-YORK272024
NaplesNEW-YORK232024
West SenecaNEW-YORK202004
MacdougallNEW-YORK172024
Harris HillNEW-YORK152009
Mt MorrisNEW-YORK142024
N VictoryNEW-YORK121972
WaylandOHIO122017
LucerneOHIO122024
BranchportNEW-YORK112024
CastileNEW-YORK112024
OrleansNEW-YORK92024
RushvilleNEW-YORK82024
ArgyleNEW-YORK82024
GarrettsvileOHIO81991
RhinebeckNEW-YORK72024
CayugaNEW-YORK72024
SalemNEW-YORK72024
AusterlitzNEW-YORK62024
SheridanNEW-YORK62024
ByronNEW-YORK62024
PhiladelphiaNEW-YORK62024
New SomersetOHIO61993
HebronOHIO62024
HiramOHIO62021

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