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

Steller's Jay In Coastal California

All regionsCoastal CaliforniaGeneralists

Steller's Jay in Coastal California has edged down: down 23% on the route-weighted index since 1970.

-23%Since 1970
63Routes In Region
56Years

Notable Signals

No notable trend signals for Steller's Jay in Coastal California. See the full index history below.

Forecast

If the recent trend holds, Steller's Jay in Coastal California is projected to rise about 50% by 2029 — from 4.3 in 2024 to a central estimate of 6.4 (95% range 2.7–10). A 5-year backtest shows a typical error of ±84.4%, with 80% of held-out values landing inside the 95% band.

+50%Change by 2029
6.4Projected 2029 index
2.7–1095% range
±84.4%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
20256.42.610
20266.42.610
20276.42.610
20286.42.710
20296.42.710

Routes In Coastal California

Routes recording Steller's Jay in Coastal California.
FallsvaleCALIFORNIA441981
CoyoteCALIFORNIA382024
Mt PinosCALIFORNIA342004
PescaderoCALIFORNIA332024
Big BearCALIFORNIA311986
FairfaxCALIFORNIA302024
Green ValleyCALIFORNIA282023
Waterman GapCALIFORNIA272024
ValyermoCALIFORNIA252019
Hough SpringsCALIFORNIA252007
CalpellaCALIFORNIA231986
Point ReyesCALIFORNIA192023
Lake HemetCALIFORNIA191986
Angelus OaksCALIFORNIA192017
Bartlett SpsCALIFORNIA172018
Mt LagunaCALIFORNIA151987
TehamaCALIFORNIA152022
ColmaCALIFORNIA141972
Lake Hemet 2CALIFORNIA132023
Lake SuccessCALIFORNIA111996
MoragaCALIFORNIA112024
Glen EllenCALIFORNIA112004
Morro BayCALIFORNIA92013
White RiverCALIFORNIA91992
Mt Pinos 2CALIFORNIA92024

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