Species · South Carolina · BBS 2025 Release · 1966–2024
Snowy Egret Population Trend in South Carolina
Snowy Egret in South Carolina has edged down: down 16% on the route-weighted index since 1968.
-16%Since 1968
7Routes In State
35Years
Notable Snowy Egret Trends in South Carolina
No notable trend signals for Snowy Egret in South Carolina. See the full index history below.
Snowy Egret Population Forecast in South Carolina
If the recent trend holds, Snowy Egret in South Carolina is projected to fall about 11% by 2029 — from 0.43 in 2024 to a central estimate of 0.38 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±43.6%, with 80% of held-out values landing inside the 95% band.
-11%Change by 2029
0.38Projected 2029 index
0.00–1.295% range
±43.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.38 | 0.00 | 1.2 |
| 2026 | 0.38 | 0.00 | 1.2 |
| 2027 | 0.38 | 0.00 | 1.2 |
| 2028 | 0.38 | 0.00 | 1.2 |
| 2029 | 0.38 | 0.00 | 1.2 |
Snowy Egret Survey Routes in South Carolina
| Kiawah Island | 9 | 2024 | 1999 |
| Dale | 9 | 1998 | 1998 |
| Johns Isle | 3 | 1978 | 1966 |
| Adams Run | 2 | 2023 | 2007 |
| Hardeeville | 1 | 1976 | 1967 |
| Walterboro | 1 | 1971 | 1971 |
| Little Mtn | 1 | 1968 | 1968 |
Snowy Egret Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianakansaslouisianamainemarylandmassachusettsmississippimissourinebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonrhode-islandsouth-dakotatennesseetexasutahvirginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.