Guild · Indiana · BBS 2025 Release · 1966–2024
Forest Birds In Indiana
40 species in this guild. As a group they are +35% since 1968.
Guild Signals
No notable trend signals for forest birds in Indiana. See the full index history below.
Forecast
If the recent trend holds, Forest birds in Indiana is projected to rise about 11% by 2029 — from 4.4 in 2024 to a central estimate of 4.9 (95% range 4.1–5.7). A 5-year backtest shows a typical error of ±18.5%, with 40% of held-out values landing inside the 95% band.
+11%Change by 2029
4.9Projected 2029 index
4.1–5.795% range
±18.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.8 | 4.0 | 5.6 |
| 2026 | 4.8 | 4.0 | 5.6 |
| 2027 | 4.8 | 4.1 | 5.6 |
| 2028 | 4.9 | 4.1 | 5.6 |
| 2029 | 4.9 | 4.1 | 5.7 |
Member Species In Indiana
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.