Species · Colorado · BBS 2025 Release · 1966–2024
Sharp-shinned Hawk Population Trend in Colorado
Sharp-shinned Hawk in Colorado has fallen sharply: down 70% on the route-weighted index since 1980.
-70%Since 1980
57Routes In State
37Years
Notable Sharp-shinned Hawk Trends in Colorado
long arc declinecomputed index
Sharp-shinned Hawk has fallen sharply in Colorado: down 70% on the route-weighted index since 1980.
Sharp-shinned Hawk Population Forecast in Colorado
If the recent trend holds, Sharp-shinned Hawk in Colorado is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±45.3%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.02Projected 2029 index
0.00–0.0695% range
±45.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.02 | 0.00 | 0.06 |
| 2026 | 0.02 | 0.00 | 0.06 |
| 2027 | 0.02 | 0.00 | 0.06 |
| 2028 | 0.02 | 0.00 | 0.06 |
| 2029 | 0.02 | 0.00 | 0.06 |
Sharp-shinned Hawk Survey Routes in Colorado
| Blackhead Pk | 3 | 1998 | 1998 |
| Lost Lake | 2 | 2019 | 2004 |
| De Beque | 2 | 1996 | 1995 |
| Haycamp Mesa | 2 | 2010 | 2010 |
| Yampa | 1 | 2009 | 2009 |
| Harmony | 1 | 1997 | 1997 |
| Arsenal | 1 | 2001 | 2001 |
| Mount Evans | 1 | 2019 | 2019 |
| Mesaverde Np | 1 | 2011 | 1996 |
| Douglas Pass | 1 | 2023 | 2000 |
| Buford | 1 | 1991 | 1991 |
| Aspen | 1 | 2024 | 1993 |
| Cheesman Lk | 1 | 2008 | 1986 |
| Delta | 1 | 1975 | 1975 |
| Colona | 1 | 2004 | 1975 |
| Parlin | 1 | 2000 | 2000 |
| Dolores | 1 | 1968 | 1968 |
| Rio Grnds Rs | 1 | 2024 | 2006 |
| Summitville | 1 | 2016 | 2016 |
| Prospect Valley 2 | 1 | 2010 | 2010 |
| Wray Gulch | 1 | 1997 | 1997 |
| Wilson Creek | 1 | 2000 | 1990 |
| Fruita | 1 | 2003 | 2003 |
| Willow Peak | 1 | 2014 | 2008 |
| Red Cliff | 1 | 2003 | 1992 |
Sharp-shinned Hawk Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.