Species · South Carolina · BBS 2025 Release · 1966–2024
Broad-winged Hawk Population Trend in South Carolina
Broad-winged Hawk in South Carolina has fallen sharply: down 63% on the route-weighted index since 1976.
-63%Since 1976
24Routes In State
34Years
Notable Broad-winged Hawk Trends in South Carolina
long arc declinecomputed index
Broad-winged Hawk has fallen sharply in South Carolina: down 63% on the route-weighted index since 1976.
Broad-winged Hawk Population Forecast in South Carolina
If the recent trend holds, Broad-winged Hawk in South Carolina is projected to fall about 34% by 2028 — from 0.09 in 2023 to a central estimate of 0.06 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±81.3%, with 100% of held-out values landing inside the 95% band.
-34%Change by 2028
0.06Projected 2028 index
0.00–0.1495% range
±81.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.07 | 0.00 | 0.15 |
| 2025 | 0.07 | 0.00 | 0.15 |
| 2026 | 0.06 | 0.00 | 0.14 |
| 2027 | 0.06 | 0.00 | 0.14 |
| 2028 | 0.06 | 0.00 | 0.14 |
Broad-winged Hawk Survey Routes in South Carolina
| Battlecreek | 3 | 2017 | 2007 |
| Sandhills | 2 | 2023 | 1996 |
| Pinewood | 2 | 2002 | 2002 |
| Dale | 2 | 2012 | 2012 |
| Jamestown | 1 | 2000 | 2000 |
| Hardeeville | 1 | 2010 | 2003 |
| Coward | 1 | 2005 | 2005 |
| Foreston | 1 | 1989 | 1975 |
| New Holland | 1 | 1986 | 1986 |
| Wagener | 1 | 1985 | 1967 |
| Dillon | 1 | 1976 | 1975 |
| Little Mtn | 1 | 1983 | 1979 |
| Salem Xrd | 1 | 2003 | 1982 |
| Barton Creek | 1 | 2017 | 1976 |
| Landrum | 1 | 1986 | 1986 |
| Plum Branch | 1 | 2019 | 1981 |
| Nixonville | 1 | 1988 | 1988 |
| Salem | 1 | 2022 | 2010 |
| Blacksburg | 1 | 2012 | 1998 |
| Joanna | 1 | 1999 | 1999 |
| Bennettsville | 1 | 2006 | 2006 |
| Adams Run | 1 | 2005 | 2005 |
| Cauthens Xrd | 1 | 2011 | 2011 |
| Chesnee | 1 | 2007 | 2007 |
Broad-winged Hawk Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.