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

Pine Siskin Population Trend in Oregon

All statesGeneralists

Pine Siskin in Oregon has fallen sharply: down 66% on the route-weighted index since 1970.

-66%Since 1970
96Routes In State
56Years

Notable Pine Siskin Trends in Oregon

long arc declinecomputed index

Pine Siskin has fallen sharply in Oregon: down 66% on the route-weighted index since 1970.

Pine Siskin Population Forecast in Oregon

If the recent trend holds, Pine Siskin in Oregon is projected to fall about 76% by 2029 — from 1.7 in 2024 to a central estimate of 0.41 (95% range 0.00–5.8). A 5-year backtest shows a typical error of ±324.1%, with 100% of held-out values landing inside the 95% band.

-76%Change by 2029
0.41Projected 2029 index
0.00–5.895% range
±324.1%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
20250.730.006.2
20260.650.006.1
20270.570.006.0
20280.490.005.9
20290.410.005.8

Pine Siskin Survey Routes in Oregon

Routes recording Pine Siskin in Oregon.
Ochoco2919821972
Hells Canyon2120221992
Eagle Creek1920221993
Bly1819941974
Mt Hood1720241972
Dell Spring1519961968
Granite1520241986
Donnelly1419951994
Howard Mdws.1320241992
Sisters1120241997
Wickiup1020241969
Clearwater920211991
Days Creek820131970
Albee720221968
Warner Mtn.720241992
Emigrant Lk619991983
Blizzard Gap619841984
Hash Rock620241983
Trask Summit620241992
Troy620241992
Newbridge620241992
Tualatin520241968
Cool Camp519921970
Paisley520221973
Sparta519961994

Pine Siskin Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutidahoiowamainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-carolinanorth-dakotaohiopennsylvaniarhode-islandsouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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