Species · Oregon · BBS 2025 Release · 1966–2024
Western Screech-Owl Population Trend in Oregon
Western Screech-Owl in Oregon has fallen sharply: down 58% on the route-weighted index since 1984.
-58%Since 1984
23Routes In State
18Years
Notable Western Screech-Owl Trends in Oregon
No notable trend signals for Western Screech-Owl in Oregon. See the full index history below.
Western Screech-Owl Population Forecast in Oregon
If the recent trend holds, Western Screech-Owl in Oregon is projected to stay roughly flat through 2028, near 0.01 (95% range 0.00–0.04). A 5-year backtest shows a typical error of ±23.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.01Projected 2028 index
0.00–0.0495% range
±23.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.01 | 0.00 | 0.04 |
| 2025 | 0.01 | 0.00 | 0.04 |
| 2026 | 0.01 | 0.00 | 0.04 |
| 2027 | 0.01 | 0.00 | 0.04 |
| 2028 | 0.01 | 0.00 | 0.04 |
Western Screech-Owl Survey Routes in Oregon
| Three Forks | 2 | 2016 | 2016 |
| Shellrock | 1 | 1998 | 1998 |
| Summit Pr | 1 | 2014 | 2014 |
| Salado | 1 | 2006 | 2006 |
| Scappoose | 1 | 2004 | 2004 |
| Lapham Res. | 1 | 1999 | 1999 |
| Nicolai Mtn. | 1 | 1999 | 1999 |
| Umpqua | 1 | 2003 | 1994 |
| Wedderburn | 1 | 1972 | 1972 |
| Days Creek | 1 | 1978 | 1978 |
| Emigrant Lake 2 | 1 | 2003 | 2003 |
| Dayton | 1 | 1987 | 1987 |
| Pendleton | 1 | 2018 | 2018 |
| Silver Creek | 1 | 1984 | 1984 |
| Adrian | 1 | 1994 | 1984 |
| Trask Summit | 1 | 1993 | 1993 |
| Badger Creek | 1 | 1999 | 1999 |
| Blue River | 1 | 2012 | 2012 |
| Coquille | 1 | 2013 | 2013 |
| Ruch | 1 | 2023 | 2023 |
| Lorane | 1 | 2022 | 2022 |
| Selma | 1 | 2023 | 1994 |
| Trout Creek | 1 | 1998 | 1998 |
Western Screech-Owl Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.