Guild · Wisconsin · BBS 2025 Release · 1966–2024
Forest Birds In Wisconsin
52 species in this guild. As a group they are +70% since 1968.
Guild Signals
No notable trend signals for forest birds in Wisconsin. See the full index history below.
Forecast
If the recent trend holds, Forest birds in Wisconsin is projected to stay roughly flat through 2029, near 5.1 (95% range 4.7–5.6). A 5-year backtest shows a typical error of ±4.2%, with 100% of held-out values landing inside the 95% band.
+2%Change by 2029
5.1Projected 2029 index
4.7–5.695% range
±4.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 5.0 | 4.6 | 5.4 |
| 2026 | 5.0 | 4.6 | 5.5 |
| 2027 | 5.1 | 4.6 | 5.5 |
| 2028 | 5.1 | 4.7 | 5.5 |
| 2029 | 5.1 | 4.7 | 5.6 |
Member Species In Wisconsin
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.