Species · South Dakota · BBS 2025 Release · 1966–2024
Sedge Wren Population Trend in South Dakota
Sedge Wren in South Dakota has surged: up 11× on the route-weighted index since 1969.
11×Since 1969
25Routes In State
51Years
Notable Sedge Wren Trends in South Dakota
long arc increasecomputed index
Sedge Wren has surged in South Dakota: up 11× on the route-weighted index since 1969.
Sedge Wren Population Forecast in South Dakota
If the recent trend holds, Sedge Wren in South Dakota is projected to rise about 26% by 2029 — from 1.5 in 2024 to a central estimate of 1.9 (95% range 0.42–3.3). A 5-year backtest shows a typical error of ±121.1%, with 80% of held-out values landing inside the 95% band.
+26%Change by 2029
1.9Projected 2029 index
0.42–3.395% range
±121.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.8 | 0.29 | 3.2 |
| 2026 | 1.8 | 0.33 | 3.2 |
| 2027 | 1.8 | 0.36 | 3.3 |
| 2028 | 1.9 | 0.39 | 3.3 |
| 2029 | 1.9 | 0.42 | 3.3 |
Sedge Wren Survey Routes in South Dakota
| Lane | 32 | 1999 | 1999 |
| Roswell | 29 | 2014 | 1972 |
| Turton | 25 | 2024 | 2010 |
| White Lake | 11 | 2011 | 2008 |
| Tripp | 8 | 2019 | 1998 |
| Volga | 7 | 2019 | 1969 |
| Veblen | 7 | 2023 | 1974 |
| Forbes | 5 | 2024 | 1969 |
| Broadland | 4 | 2014 | 1999 |
| Chamberlain | 3 | 2010 | 2010 |
| Gorman | 3 | 2010 | 2010 |
| Wilmot | 2 | 2024 | 1969 |
| Lacreek | 2 | 1996 | 1996 |
| Lennox | 1 | 2021 | 1972 |
| Howard | 1 | 2024 | 1972 |
| Geddes | 1 | 1994 | 1994 |
| Raymond | 1 | 2021 | 1968 |
| Crow Creek | 1 | 2019 | 2000 |
| Ft Thompson | 1 | 2011 | 2011 |
| Britton | 1 | 2023 | 1967 |
| Gettysburg | 1 | 2023 | 1996 |
| Long Lake | 1 | 2019 | 1987 |
| Marcus | 1 | 2002 | 2002 |
| White River | 1 | 1998 | 1998 |
| Lane 2 | 1 | 2014 | 2000 |
Sedge Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.