Species · BCR 9 · BBS 2025 Release · 1966–2024
Western Screech-Owl In Great Basin
Western Screech-Owl in Great Basin has declined: down 48% on the route-weighted index since 1986.
-48%Since 1986
18Routes In Region
19Years
Notable Signals
No notable trend signals for Western Screech-Owl in Great Basin. See the full index history below.
Forecast
If the recent trend holds, Western Screech-Owl in Great Basin is projected to stay roughly flat through 2023, near 0.01 (95% range 0.00–0.02). A 5-year backtest shows a typical error of ±27%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2023
0.01Projected 2023 index
0.00–0.0295% range
±27%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2019 | 0.01 | 0.00 | 0.02 |
| 2020 | 0.01 | 0.00 | 0.02 |
| 2021 | 0.01 | 0.00 | 0.02 |
| 2022 | 0.01 | 0.00 | 0.02 |
| 2023 | 0.01 | 0.00 | 0.02 |
Routes In Great Basin
| Magic Mtn | IDAHO | 3 | 1992 |
| Three Forks | OREGON | 2 | 2016 |
| Twisp | WASHINGTON | 2 | 2008 |
| Nubieber | CALIFORNIA | 1 | 1986 |
| Macdoel | CALIFORNIA | 1 | 1976 |
| Clear Lk Res | CALIFORNIA | 1 | 1997 |
| Eureka | NEVADA | 1 | 2011 |
| Chimney Res. | NEVADA | 1 | 2015 |
| Pendleton | OREGON | 1 | 2018 |
| Adrian | OREGON | 1 | 1994 |
| Lapham Res. | OREGON | 1 | 1999 |
| Badger Creek | OREGON | 1 | 1999 |
| Trout Creek | OREGON | 1 | 1998 |
| Lynn | UTAH | 1 | 1995 |
| Snowden | WASHINGTON | 1 | 1990 |
| Winthrop | WASHINGTON | 1 | 1999 |
| Ronald | WASHINGTON | 1 | 2010 |
| Leavenworth | WASHINGTON | 1 | 2011 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.