BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

California Scrub-Jay In Great Basin

All regionsGreat BasinGeneralists

California Scrub-Jay in Great Basin has increased: up 38% on the route-weighted index since 1972.

+38%Since 1972
27Routes In Region
54Years

Notable Signals

No notable trend signals for California Scrub-Jay in Great Basin. See the full index history below.

Forecast

If the recent trend holds, California Scrub-Jay in Great Basin is projected to rise about 79% by 2029 — from 0.28 in 2024 to a central estimate of 0.50 (95% range 0.15–0.85). A 5-year backtest shows a typical error of ±109.5%, with 60% of held-out values landing inside the 95% band.

+79%Change by 2029
0.50Projected 2029 index
0.15–0.8595% range
±109.5%Backtest error
19702029
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
20250.500.150.86
20260.500.150.86
20270.500.150.86
20280.500.150.85
20290.500.150.85

Routes In Great Basin

Routes recording California Scrub-Jay in Great Basin.
Iron GateCALIFORNIA302019
SnowdenWASHINGTON152024
Mt HoodOREGON102024
Fall River MillsCALIFORNIA92011
Modoc PointOREGON82018
NubieberCALIFORNIA62018
TionestaCALIFORNIA62021
Barnes ValOREGON61972
MacdoelCALIFORNIA52019
DeschutesOREGON42024
MadelineCALIFORNIA32022
Modoc Point 2OREGON32024
IngallsCALIFORNIA22001
RavendaleCALIFORNIA22024
Clear Lk ResCALIFORNIA22018
Ruby Valley 2NEVADA22016
Comins LakeNEVADA22016
LikelyCALIFORNIA12024
Davis CreekCALIFORNIA12024
DorrisCALIFORNIA12018
CedarvilleCALIFORNIA12019
BartleCALIFORNIA12013
Fandango CanOREGON12024
BlyOREGON11988
MerrillOREGON12012

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