Species · South Carolina · BBS 2025 Release · 1966–2024
Osprey Population Trend in South Carolina
Osprey in South Carolina has surged: up 456% on the route-weighted index since 1991.
+456%Since 1991
14Routes In State
31Years
Notable Osprey Trends in South Carolina
long arc increasecomputed index
Osprey has surged in South Carolina: up 456% on the route-weighted index since 1991.
Osprey Population Forecast in South Carolina
If the recent trend holds, Osprey in South Carolina is projected to fall about 19% by 2029 — from 0.43 in 2024 to a central estimate of 0.35 (95% range 0.17–0.53). A 5-year backtest shows a typical error of ±23.2%, with 100% of held-out values landing inside the 95% band.
-19%Change by 2029
0.35Projected 2029 index
0.17–0.5395% range
±23.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.32 | 0.14 | 0.50 |
| 2026 | 0.33 | 0.14 | 0.51 |
| 2027 | 0.33 | 0.15 | 0.52 |
| 2028 | 0.34 | 0.16 | 0.52 |
| 2029 | 0.35 | 0.17 | 0.53 |
Osprey Survey Routes in South Carolina
| Kiawah Island | 9 | 2024 | 1998 |
| Rome | 2 | 1994 | 1994 |
| Johns Isle | 1 | 1974 | 1974 |
| Jamestown | 1 | 2000 | 2000 |
| Hardeeville | 1 | 2022 | 1997 |
| Adams Run | 1 | 1991 | 1991 |
| Foreston | 1 | 1987 | 1987 |
| Prosperity | 1 | 2018 | 2017 |
| Plum Branch | 1 | 2023 | 2008 |
| Bennettsville | 1 | 2014 | 2014 |
| New Ellenton | 1 | 2018 | 2018 |
| Pinewood | 1 | 2001 | 2001 |
| Red Bluff | 1 | 2022 | 2017 |
| Ridgeway | 1 | 2012 | 2010 |
Osprey Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.