Species · California · BBS 2025 Release · 1966–2024
American Goshawk Population Trend in California
American Goshawk in California has declined: down 37% on the route-weighted index since 1979.
-37%Since 1979
34Routes In State
34Years
Notable American Goshawk Trends in California
No notable trend signals for American Goshawk in California. See the full index history below.
American Goshawk Population Forecast in California
If the recent trend holds, American Goshawk in California is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.04). A 5-year backtest shows a typical error of ±117.4%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.02Projected 2028 index
0.00–0.0495% range
±117.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.02 | 0.00 | 0.04 |
| 2025 | 0.02 | 0.00 | 0.04 |
| 2026 | 0.02 | 0.00 | 0.04 |
| 2027 | 0.02 | 0.00 | 0.04 |
| 2028 | 0.02 | 0.00 | 0.04 |
American Goshawk Survey Routes in California
| Kelso Valley | 1 | 2010 | 2010 |
| Honeydew | 1 | 2012 | 2012 |
| Eagle Lake | 1 | 2021 | 1978 |
| Westville | 1 | 2022 | 2018 |
| Dirigio | 1 | 2006 | 2000 |
| Tionesta | 1 | 2019 | 2019 |
| Crowder Flat | 1 | 2005 | 2002 |
| Madeline | 1 | 1998 | 1998 |
| Burnt Ranch | 1 | 2007 | 1998 |
| Tuolumne Grove | 1 | 2011 | 2011 |
| Meadow Valley | 1 | 2017 | 2017 |
| Little Truckee | 1 | 2001 | 2001 |
| Pollock Pines | 1 | 2014 | 2014 |
| Coulterville | 1 | 2012 | 2012 |
| Pine Mountain | 1 | 2003 | 2003 |
| Macdoel | 1 | 2017 | 2017 |
| Cecilville | 1 | 2003 | 2003 |
| Offield Mtn | 1 | 1978 | 1978 |
| Mt Shasta | 1 | 2012 | 1990 |
| Hay Fork | 1 | 2004 | 2004 |
| Friday Ridge | 1 | 2003 | 2003 |
| Butte Meadow | 1 | 1980 | 1980 |
| Genesee | 1 | 1993 | 1993 |
| Chaos Crater | 1 | 2000 | 1990 |
| Riverton | 1 | 2012 | 2010 |
American Goshawk Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.