Species · BCR 15 · BBS 2025 Release · 1966–2024
Steller's Jay In Sierra Nevada
Steller's Jay in Sierra Nevada has edged down: down 21% on the route-weighted index since 1970.
-21%Since 1970
40Routes In Region
56Years
Notable Signals
No notable trend signals for Steller's Jay in Sierra Nevada. See the full index history below.
Forecast
If the recent trend holds, Steller's Jay in Sierra Nevada is projected to rise about 32% by 2029 — from 13 in 2024 to a central estimate of 17 (95% range 9.1–25). A 5-year backtest shows a typical error of ±22%, with 100% of held-out values landing inside the 95% band.
+32%Change by 2029
17Projected 2029 index
9.1–2595% range
±22%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 17 | 9.6 | 25 |
| 2026 | 17 | 9.5 | 25 |
| 2027 | 17 | 9.3 | 25 |
| 2028 | 17 | 9.2 | 25 |
| 2029 | 17 | 9.1 | 25 |
Routes In Sierra Nevada
| Forest Hill | CALIFORNIA | 36 | 2022 |
| Hat Creek | CALIFORNIA | 30 | 2018 |
| Last Chance | CALIFORNIA | 28 | 2019 |
| Bass Lake | CALIFORNIA | 27 | 2019 |
| Genesee | CALIFORNIA | 27 | 2024 |
| Greenhorn Mt | CALIFORNIA | 26 | 2008 |
| Forest Hill 2 | CALIFORNIA | 25 | 2005 |
| Cottage Spgs | CALIFORNIA | 24 | 1975 |
| Eagle Lake | CALIFORNIA | 23 | 2024 |
| Johnsville | CALIFORNIA | 22 | 2024 |
| Lakeshore | CALIFORNIA | 22 | 2024 |
| Woodfords | CALIFORNIA | 20 | 2024 |
| Butte Meadow | CALIFORNIA | 20 | 2014 |
| Placerville | CALIFORNIA | 20 | 2024 |
| Strawberry | CALIFORNIA | 19 | 2019 |
| Downieville | CALIFORNIA | 17 | 2024 |
| Pine Mountain | CALIFORNIA | 17 | 2017 |
| Goumaz | CALIFORNIA | 16 | 2011 |
| Riverton | CALIFORNIA | 14 | 2023 |
| Tuolumne Grove | CALIFORNIA | 13 | 2024 |
| Paxton | CALIFORNIA | 13 | 2024 |
| Westville | CALIFORNIA | 12 | 2024 |
| Chilcoot | CALIFORNIA | 12 | 2024 |
| Tahoe Nf | CALIFORNIA | 11 | 1994 |
| Meadow Valley | CALIFORNIA | 10 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.