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

Purple Finch In Lower Great Lakes / St. Lawrence Plain

All regionsLower Great Lakes / St. Lawrence PlainGeneralists

Purple Finch in Lower Great Lakes / St. Lawrence Plain has fallen sharply: down 58% on the route-weighted index since 1968.

-58%Since 1968
79Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Purple Finch has fallen sharply in Lower Great Lakes / St. Lawrence Plain: down 58% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Purple Finch in Lower Great Lakes / St. Lawrence Plain is projected to rise about 10% by 2029 — from 0.44 in 2024 to a central estimate of 0.48 (95% range 0.00–0.96). A 5-year backtest shows a typical error of ±43.3%, with 100% of held-out values landing inside the 95% band.

+10%Change by 2029
0.48Projected 2029 index
0.00–0.9695% range
±43.3%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
20250.510.031.00
20260.510.020.99
20270.500.010.98
20280.490.010.97
20290.480.000.96

Routes In Lower Great Lakes / St. Lawrence Plain

Routes recording Purple Finch in Lower Great Lakes / St. Lawrence Plain.
Cicero CtrNEW-YORK52022
MiddlefieldOHIO51995
CatskillsNEW-YORK42007
RomulusNEW-YORK41997
RushvilleNEW-YORK42018
E YoungstownNEW-YORK42023
NashvilleNEW-YORK32018
OneidaNEW-YORK32009
ClintonNEW-YORK32002
OgdensburgNEW-YORK32024
HopkintonNEW-YORK32021
WaylandOHIO31999
GarrettsvileOHIO31991
TeeplevillePENNSYLVANIA32018
Sugar GrovePENNSYLVANIA32024
North PownalVERMONT31993
HinesburgVERMONT31988
W ShokanNEW-YORK22009
GhentNEW-YORK22004
BranchportNEW-YORK22024
MendonNEW-YORK21988
HamburgNEW-YORK22024
CastileNEW-YORK22014
ByronNEW-YORK22019
ChurchvilleNEW-YORK22006

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