Species · Washington · BBS 2025 Release · 1966–2024
Redhead Population Trend in Washington
Redhead in Washington has edged down: down 21% on the route-weighted index since 1977.
-21%Since 1977
21Routes In State
47Years
Notable Redhead Trends in Washington
No notable trend signals for Redhead in Washington. See the full index history below.
Redhead Population Forecast in Washington
If the recent trend holds, Redhead in Washington is projected to fall about 57% by 2029 — from 0.63 in 2024 to a central estimate of 0.27 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±324.1%, with 100% of held-out values landing inside the 95% band.
-57%Change by 2029
0.27Projected 2029 index
0.00–1.295% range
±324.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.32 | 0.00 | 1.3 |
| 2026 | 0.30 | 0.00 | 1.3 |
| 2027 | 0.29 | 0.00 | 1.3 |
| 2028 | 0.28 | 0.00 | 1.3 |
| 2029 | 0.27 | 0.00 | 1.2 |
Redhead Survey Routes in Washington
| Keystone | 36 | 2024 | 1994 |
| Othello | 30 | 1991 | 1982 |
| Columbia Nwr | 20 | 2021 | 1992 |
| Brewster | 12 | 2018 | 1978 |
| Moses Lake | 12 | 2022 | 1977 |
| Wilbur | 10 | 2005 | 1984 |
| Harrington | 8 | 1980 | 1980 |
| Tonasket | 6 | 2018 | 1983 |
| Turnbull Nwr | 5 | 2023 | 1993 |
| Moses Coulee | 4 | 2023 | 1996 |
| Malden | 3 | 2005 | 2005 |
| Odessa | 3 | 1993 | 1993 |
| Twisp | 2 | 2004 | 2004 |
| Reardan | 2 | 2009 | 1969 |
| Wapato | 2 | 1994 | 1983 |
| Cusick | 2 | 1997 | 1997 |
| Connell | 1 | 1997 | 1994 |
| Asotin | 1 | 1990 | 1990 |
| Ewan | 1 | 1999 | 1991 |
| Potholes | 1 | 2017 | 2017 |
| Mesa | 1 | 1995 | 1995 |
Redhead Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.