BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Pine Siskin In Coastal California

All regionsCoastal CaliforniaGeneralists

Pine Siskin in Coastal California has declined: down 40% on the route-weighted index since 1970.

-40%Since 1970
32Routes In Region
56Years

Notable Signals

No notable trend signals for Pine Siskin in Coastal California. See the full index history below.

Forecast

If the recent trend holds, Pine Siskin in Coastal California is projected to fall about 15% by 2029 — from 0.68 in 2024 to a central estimate of 0.58 (95% range 0.00–2.3). A 5-year backtest shows a typical error of ±41.2%, with 80% of held-out values landing inside the 95% band.

-15%Change by 2029
0.58Projected 2029 index
0.00–2.395% range
±41.2%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
20250.650.002.4
20260.630.002.3
20270.610.002.3
20280.600.002.3
20290.580.002.3

Routes In Coastal California

Routes recording Pine Siskin in Coastal California.
ColmaCALIFORNIA381972
Point ReyesCALIFORNIA312023
Big BearCALIFORNIA251981
FairfaxCALIFORNIA162024
PescaderoCALIFORNIA112024
Lake HemetCALIFORNIA81976
Elsinore MtnCALIFORNIA41970
Lake CachumaCALIFORNIA41988
Yolla BollyCALIFORNIA41973
Mark WestCALIFORNIA42024
Lake SuccessCALIFORNIA31975
MoragaCALIFORNIA31988
Bartlett SpsCALIFORNIA31975
Yokohl ValCALIFORNIA21994
Mt PinosCALIFORNIA21985
Morro BayCALIFORNIA21991
ValyermoCALIFORNIA22018
FallsvaleCALIFORNIA21975
Green ValleyCALIFORNIA21991
Glen EllenCALIFORNIA21976
WoodlandsCALIFORNIA22019
TomheadCALIFORNIA22008
Red BluffCALIFORNIA11969
Tres PinosCALIFORNIA11994
CoalingaCALIFORNIA11991

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