Species · Washington · BBS 2025 Release · 1966–2024
Say's Phoebe Population Trend in Washington
Say's Phoebe in Washington has surged: up 168% on the route-weighted index since 1970.
+168%Since 1970
62Routes In State
55Years
Notable Say's Phoebe Trends in Washington
long arc increasecomputed index
Say's Phoebe has surged in Washington: up 168% on the route-weighted index since 1970.
Say's Phoebe Population Forecast in Washington
If the recent trend holds, Say's Phoebe in Washington is projected to rise about 13% by 2029 — from 1.3 in 2024 to a central estimate of 1.4 (95% range 0.78–2.1). A 5-year backtest shows a typical error of ±53.4%, with 80% of held-out values landing inside the 95% band.
+13%Change by 2029
1.4Projected 2029 index
0.78–2.195% range
±53.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.4 | 0.71 | 2.0 |
| 2026 | 1.4 | 0.73 | 2.0 |
| 2027 | 1.4 | 0.74 | 2.0 |
| 2028 | 1.4 | 0.76 | 2.0 |
| 2029 | 1.4 | 0.78 | 2.1 |
Say's Phoebe Survey Routes in Washington
| Snowden | 16 | 1971 | 1971 |
| Nighthawk | 11 | 2024 | 1992 |
| Ewan 2 | 9 | 2024 | 2023 |
| Reardan | 7 | 2024 | 1977 |
| L Pend O Nwr | 7 | 2024 | 1996 |
| Walla Walla | 7 | 1993 | 1993 |
| Twisp | 5 | 2024 | 1969 |
| Ewan | 5 | 2019 | 1983 |
| Ellensburg | 5 | 2024 | 1981 |
| Moses Coulee | 5 | 2023 | 1994 |
| Lake Chelan | 5 | 2024 | 1988 |
| Asotin | 4 | 2024 | 1983 |
| Chewelah | 3 | 2021 | 1999 |
| Ardenvoir | 3 | 1986 | 1968 |
| Bickleton | 3 | 2019 | 1983 |
| Winthrop | 3 | 2022 | 1995 |
| Wilbur | 3 | 2024 | 1984 |
| Keystone | 3 | 2024 | 1994 |
| Horn Rapids | 3 | 2018 | 2005 |
| Pomeroy | 3 | 2024 | 1998 |
| Odessa | 3 | 2024 | 1993 |
| Deer Park | 3 | 2015 | 1994 |
| Arid Land Er | 2 | 1996 | 1989 |
| Harrington | 2 | 2005 | 1977 |
| Pomona | 2 | 1999 | 1998 |
Say's Phoebe Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.