Species · South Carolina · BBS 2025 Release · 1966–2024
Black-and-white Warbler Population Trend in South Carolina
Black-and-white Warbler in South Carolina has surged: up 661% on the route-weighted index since 1968.
+661%Since 1968
24Routes In State
54Years
Notable Black-and-white Warbler Trends in South Carolina
long arc increasecomputed index
Black-and-white Warbler has surged in South Carolina: up 661% on the route-weighted index since 1968.
Black-and-white Warbler Population Forecast in South Carolina
If the recent trend holds, Black-and-white Warbler in South Carolina is projected to stay roughly flat through 2029, near 0.64 (95% range 0.19–1.1). A 5-year backtest shows a typical error of ±22.3%, with 100% of held-out values landing inside the 95% band.
+4%Change by 2029
0.64Projected 2029 index
0.19–1.195% range
±22.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.61 | 0.16 | 1.1 |
| 2026 | 0.62 | 0.17 | 1.1 |
| 2027 | 0.63 | 0.18 | 1.1 |
| 2028 | 0.63 | 0.18 | 1.1 |
| 2029 | 0.64 | 0.19 | 1.1 |
Black-and-white Warbler Survey Routes in South Carolina
| Whitmire | 6 | 2024 | 2010 |
| Hardeeville | 4 | 1972 | 1972 |
| Ridgeway | 4 | 2019 | 2010 |
| Little Mtn | 3 | 1983 | 1966 |
| Salem Xrd | 2 | 2019 | 1983 |
| Battlecreek | 2 | 2024 | 2000 |
| Sandhills | 1 | 2024 | 2022 |
| Coward | 1 | 1970 | 1970 |
| New Holland | 1 | 2001 | 1975 |
| Wagener | 1 | 1996 | 1987 |
| Bishopville | 1 | 2024 | 2024 |
| Landrum | 1 | 1974 | 1974 |
| Plum Branch | 1 | 2024 | 1977 |
| New Ellenton | 1 | 2022 | 2022 |
| Campobello | 1 | 2024 | 2024 |
| Lowrys | 1 | 2017 | 2017 |
| Blacksburg | 1 | 2012 | 2012 |
| Greenwood | 1 | 2019 | 1998 |
| Joanna | 1 | 2022 | 2000 |
| Mount Pisgah | 1 | 2002 | 1998 |
| Bennettsville | 1 | 2014 | 2000 |
| Olar | 1 | 2008 | 2008 |
| Cauthens Xrd | 1 | 2021 | 1982 |
| Prosperity | 1 | 2024 | 1992 |
Black-and-white Warbler Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.