BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Lesser Goldfinch Population Trend in Oregon

All statesGeneralists

Lesser Goldfinch in Oregon has declined: down 43% on the route-weighted index since 1971.

-43%Since 1971
45Routes In State
55Years

Notable Lesser Goldfinch Trends in Oregon

No notable trend signals for Lesser Goldfinch in Oregon. See the full index history below.

Lesser Goldfinch Population Forecast in Oregon

If the recent trend holds, Lesser Goldfinch in Oregon is projected to fall about 61% by 2029 — from 1.4 in 2024 to a central estimate of 0.56 (95% range 0.00–1.6). A 5-year backtest shows a typical error of ±71.5%, with 60% of held-out values landing inside the 95% band.

-61%Change by 2029
0.56Projected 2029 index
0.00–1.695% range
±71.5%Backtest error
19682029
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
20250.610.001.7
20260.600.001.7
20270.590.001.7
20280.570.001.7
20290.560.001.6

Lesser Goldfinch Survey Routes in Oregon

Routes recording Lesser Goldfinch in Oregon.
Tualatin5120241972
Garfield2620232011
Emigrant Lake 21220242002
Salem920241994
Deschutes820242014
Modoc Point820181975
Wedderburn720181970
Dayton720222009
Secret Val720221975
Emigrant Lk720011972
Green720241994
Ruch720231992
Derby619931968
Twickenham620242011
Modoc Point 2520242024
Monument520242024
Scappoose420232021
Canby420241993
Sams Valley420241994
Santiam320242011
Adair320242012
Hazel Camp320221976
Madras320242005
Coquille320242013
Umpqua220241970

Lesser Goldfinch Population Trend in Other States

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