Species · Washington · BBS 2025 Release · 1966–2024
Sora Population Trend in Washington
Sora in Washington has declined: down 45% on the route-weighted index since 1980.
-45%Since 1980
39Routes In State
44Years
Notable Sora Trends in Washington
No notable trend signals for Sora in Washington. See the full index history below.
Sora Population Forecast in Washington
If the recent trend holds, Sora in Washington is projected to rise about 12% by 2029 — from 0.10 in 2024 to a central estimate of 0.12 (95% range 0.00–0.23). A 5-year backtest shows a typical error of ±130.5%, with 100% of held-out values landing inside the 95% band.
+12%Change by 2029
0.12Projected 2029 index
0.00–0.2395% range
±130.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.12 | 0.00 | 0.23 |
| 2026 | 0.12 | 0.00 | 0.23 |
| 2027 | 0.12 | 0.00 | 0.23 |
| 2028 | 0.12 | 0.00 | 0.23 |
| 2029 | 0.12 | 0.00 | 0.23 |
Sora Survey Routes in Washington
| Brewster | 5 | 2000 | 2000 |
| Mendota | 3 | 1977 | 1977 |
| Carnation | 3 | 2008 | 1988 |
| Turnbull Nwr | 2 | 2023 | 1994 |
| Bay View | 2 | 1998 | 1998 |
| Port Angeles | 1 | 1992 | 1988 |
| Twisp | 1 | 2021 | 1984 |
| Chewelah | 1 | 2018 | 1980 |
| Kamilche | 1 | 1977 | 1977 |
| Ewan 2 | 1 | 2024 | 2024 |
| L Pend O Nwr | 1 | 2014 | 2014 |
| Moses Lake | 1 | 2018 | 1974 |
| Harrington | 1 | 2012 | 1980 |
| Reardan | 1 | 2019 | 1988 |
| Mendota 2 | 1 | 1993 | 1993 |
| Rimrock | 1 | 2016 | 1988 |
| Wapato | 1 | 2018 | 1985 |
| Snowden | 1 | 2016 | 2016 |
| Kendall | 1 | 2015 | 2003 |
| Winthrop | 1 | 2000 | 2000 |
| Tonasket | 1 | 2013 | 1984 |
| Twin Lakes | 1 | 1988 | 1985 |
| Cusick | 1 | 2024 | 1984 |
| Everett | 1 | 2024 | 2024 |
| Wilbur | 1 | 2019 | 1999 |
Sora Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.