Guild · South Dakota · BBS 2025 Release · 1966–2024
Generalists In South Dakota
67 species in this guild. As a group they are -37% since 1969.
Guild Signals
No notable trend signals for generalists in South Dakota. See the full index history below.
Forecast
If the recent trend holds, Generalists in South Dakota is projected to fall about 35% by 2029 — from 5.5 in 2024 to a central estimate of 3.6 (95% range 1.0–6.1). A 5-year backtest shows a typical error of ±35.3%, with 100% of held-out values landing inside the 95% band.
-35%Change by 2029
3.6Projected 2029 index
1.0–6.195% range
±35.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.9 | 1.3 | 6.4 |
| 2026 | 3.8 | 1.2 | 6.4 |
| 2027 | 3.7 | 1.2 | 6.3 |
| 2028 | 3.6 | 1.1 | 6.2 |
| 2029 | 3.6 | 1.0 | 6.1 |
Member Species In South Dakota
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.