Species · BCR 9 · BBS 2025 Release · 1966–2024
Steller's Jay In Great Basin
Steller's Jay in Great Basin has risen sharply: up 63% on the route-weighted index since 1970.
+63%Since 1970
98Routes In Region
56Years
Notable Signals
long arc increasecomputed index
Steller's Jay has risen sharply in Great Basin: up 63% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Steller's Jay in Great Basin is projected to rise about 15% by 2029 — from 1.2 in 2024 to a central estimate of 1.4 (95% range 0.81–1.9). A 5-year backtest shows a typical error of ±23.1%, with 100% of held-out values landing inside the 95% band.
+15%Change by 2029
1.4Projected 2029 index
0.81–1.995% range
±23.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.4 | 0.80 | 1.9 |
| 2026 | 1.4 | 0.80 | 1.9 |
| 2027 | 1.4 | 0.80 | 1.9 |
| 2028 | 1.4 | 0.81 | 1.9 |
| 2029 | 1.4 | 0.81 | 1.9 |
Routes In Great Basin
| Barnes Val | OREGON | 23 | 1987 |
| Macdoel | CALIFORNIA | 21 | 2019 |
| Kendall | WASHINGTON | 20 | 2024 |
| Leavenworth | WASHINGTON | 13 | 2024 |
| Mt Hood | OREGON | 12 | 2024 |
| Lakeview | OREGON | 12 | 2024 |
| Snowden | WASHINGTON | 11 | 2024 |
| Crowder Flat | CALIFORNIA | 10 | 2019 |
| Tractor Flat | IDAHO | 10 | 1994 |
| Medicine Mtn. | CALIFORNIA | 9 | 2021 |
| Glacier | WASHINGTON | 9 | 2024 |
| Wizard Falls | OREGON | 8 | 2024 |
| Rimrock | WASHINGTON | 8 | 2024 |
| Bartle | CALIFORNIA | 7 | 2021 |
| Nubieber | CALIFORNIA | 6 | 2018 |
| Davis Creek | CALIFORNIA | 6 | 2024 |
| Hackamore | CALIFORNIA | 6 | 2010 |
| Bly 2 | OREGON | 6 | 2024 |
| Sisters | OREGON | 6 | 2024 |
| Newhalem | WASHINGTON | 6 | 2024 |
| Concrete | WASHINGTON | 6 | 2024 |
| Cascade Riv | WASHINGTON | 6 | 2006 |
| Likely | CALIFORNIA | 5 | 2024 |
| Hawthorne | NEVADA | 5 | 2001 |
| Bly | OREGON | 5 | 2001 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.