Guild · Indiana · BBS 2025 Release · 1966–2024
Wetland Birds In Indiana
10 species in this guild. As a group they are +18% since 1968.
Guild Signals
No notable trend signals for wetland birds in Indiana. See the full index history below.
Forecast
If the recent trend holds, Wetland birds in Indiana is projected to rise about 183% by 2029 — from 0.64 in 2024 to a central estimate of 1.8 (95% range 0.29–3.3). A 5-year backtest shows a typical error of ±238.4%, with 20% of held-out values landing inside the 95% band.
+183%Change by 2029
1.8Projected 2029 index
0.29–3.395% range
±238.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.7 | 0.21 | 3.3 |
| 2026 | 1.8 | 0.23 | 3.3 |
| 2027 | 1.8 | 0.25 | 3.3 |
| 2028 | 1.8 | 0.27 | 3.3 |
| 2029 | 1.8 | 0.29 | 3.3 |
Member Species In Indiana
| American Coot | Rallidae | -92% |
| Pied-billed Grebe | Podicipedidae | -82% |
| Double-crested Cormorant | Phalacrocoracidae | -67% |
| Green Heron | Ardeidae | -66% |
| Black-crowned Night Heron | Ardeidae | -40% |
| Great Egret | Ardeidae | -19% |
| Herring Gull | Laridae | +142% |
| Great Blue Heron | Ardeidae | +229% |
| Ring-billed Gull | Laridae | +310% |
| Sandhill Crane | Gruidae | +313% |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.