Species · Washington · BBS 2025 Release · 1966–2024
Red-naped Sapsucker Population Trend in Washington
Red-naped Sapsucker in Washington has surged: up 109% on the route-weighted index since 1970.
+109%Since 1970
34Routes In State
55Years
Notable Red-naped Sapsucker Trends in Washington
long arc increasecomputed index
Red-naped Sapsucker has surged in Washington: up 109% on the route-weighted index since 1970.
Red-naped Sapsucker Population Forecast in Washington
If the recent trend holds, Red-naped Sapsucker in Washington is projected to rise about 44% by 2029 — from 0.49 in 2024 to a central estimate of 0.71 (95% range 0.38–1.0). A 5-year backtest shows a typical error of ±72.9%, with 40% of held-out values landing inside the 95% band.
+44%Change by 2029
0.71Projected 2029 index
0.38–1.095% range
±72.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.68 | 0.35 | 1.0 |
| 2026 | 0.68 | 0.36 | 1.0 |
| 2027 | 0.69 | 0.37 | 1.0 |
| 2028 | 0.70 | 0.38 | 1.0 |
| 2029 | 0.71 | 0.38 | 1.0 |
Red-naped Sapsucker Survey Routes in Washington
| Omak Creek | 14 | 2024 | 1998 |
| Winthrop | 4 | 2022 | 1984 |
| Cusick | 4 | 2024 | 1982 |
| Leavenworth | 4 | 2017 | 1984 |
| Deer Park | 4 | 2015 | 1994 |
| Keller | 3 | 2007 | 1968 |
| Rimrock | 3 | 2016 | 1969 |
| Nighthawk | 3 | 2024 | 1993 |
| Laurier | 3 | 2019 | 2001 |
| Tonasket | 2 | 2018 | 1983 |
| Ellensburg | 2 | 2022 | 1997 |
| Carlton | 2 | 2022 | 1992 |
| L. Wenatchee | 2 | 2010 | 1993 |
| Cloverland | 2 | 2004 | 2004 |
| Twisp | 1 | 2024 | 1993 |
| Chewelah | 1 | 2017 | 1977 |
| Turnbull Nwr | 1 | 2016 | 1993 |
| L Pend O Nwr | 1 | 2024 | 1995 |
| Reardan | 1 | 2024 | 1974 |
| Cougar | 1 | 1973 | 1973 |
| Asotin | 1 | 2008 | 1989 |
| Sullivan Lake 2 | 1 | 2023 | 2003 |
| Twin Lakes | 1 | 2024 | 1983 |
| Wilbur | 1 | 1997 | 1986 |
| Ewan | 1 | 2009 | 1986 |
Red-naped Sapsucker Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.