Species · Washington · BBS 2025 Release · 1966–2024
Cooper's Hawk Population Trend in Washington
Cooper's Hawk in Washington has held roughly steady: down 3% on the route-weighted index since 1972.
-3%Since 1972
52Routes In State
43Years
Notable Cooper's Hawk Trends in Washington
No notable trend signals for Cooper's Hawk in Washington. See the full index history below.
Cooper's Hawk Population Forecast in Washington
If the recent trend holds, Cooper's Hawk in Washington is projected to fall about 51% by 2029 — from 0.17 in 2024 to a central estimate of 0.09 (95% range 0.01–0.17). A 5-year backtest shows a typical error of ±40.9%, with 60% of held-out values landing inside the 95% band.
-51%Change by 2029
0.09Projected 2029 index
0.01–0.1795% range
±40.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.08 | 0.00 | 0.17 |
| 2026 | 0.09 | 0.00 | 0.17 |
| 2027 | 0.09 | 0.01 | 0.17 |
| 2028 | 0.09 | 0.01 | 0.17 |
| 2029 | 0.09 | 0.01 | 0.17 |
Cooper's Hawk Survey Routes in Washington
| Wapato | 2 | 2021 | 2021 |
| Cusick | 2 | 2017 | 2004 |
| Yakima | 2 | 2024 | 2018 |
| Lake Chelan | 2 | 2024 | 1993 |
| Port Angeles | 1 | 2022 | 1985 |
| Warm Beach | 1 | 2004 | 2004 |
| Newhalem | 1 | 1984 | 1984 |
| Twisp | 1 | 2017 | 1971 |
| Keller | 1 | 2007 | 1999 |
| Chewelah | 1 | 2016 | 1979 |
| Turnbull Nwr | 1 | 1999 | 1999 |
| Vashon Is. | 1 | 2017 | 2004 |
| Mcchord | 1 | 2003 | 2003 |
| Reardan | 1 | 2018 | 1993 |
| Bunker Hill | 1 | 1976 | 1976 |
| Columbia Nwr | 1 | 2021 | 2021 |
| Rimrock | 1 | 2003 | 1968 |
| Snowden | 1 | 2019 | 1973 |
| Kendall | 1 | 2018 | 2018 |
| Winthrop | 1 | 2017 | 1983 |
| Tonasket | 1 | 2017 | 2005 |
| Twin Lakes | 1 | 1996 | 1996 |
| Everett | 1 | 2023 | 1989 |
| Ronald | 1 | 2022 | 1991 |
| Leavenworth | 1 | 1981 | 1981 |
Cooper's Hawk Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.