Guild · Alaska · BBS 2025 Release · 1966–2024
Wetland Birds In Alaska
17 species in this guild. As a group they are -96% since 1972.
Guild Signals
guild collapsecomputed index
Wetland birds as a group have collapsed in Alaska, down 96% since 1972.
Forecast
If the recent trend holds, Wetland birds in Alaska is projected to fall about 100% by 2029 — from 0.94 in 2024 to a central estimate of 0.00 (95% range 0.00–24). A 5-year backtest shows a typical error of ±526.5%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–2495% range
±526.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 24 |
| 2026 | 0.00 | 0.00 | 24 |
| 2027 | 0.00 | 0.00 | 24 |
| 2028 | 0.00 | 0.00 | 24 |
| 2029 | 0.00 | 0.00 | 24 |
Member Species In Alaska
| Great Blue Heron | Ardeidae | -97% |
| Glaucous Gull | Laridae | -96% |
| Herring Gull | Laridae | -96% |
| Aleutian Tern | Laridae | -91% |
| Red-necked Grebe | Podicipedidae | -84% |
| Horned Grebe | Podicipedidae | -84% |
| Bonaparte's Gull | Laridae | -79% |
| Pelagic Cormorant | Phalacrocoracidae | -77% |
| Arctic Tern | Laridae | -61% |
| Short-billed Gull | Laridae | -59% |
| Common Loon | Gaviidae | -45% |
| Sora | Rallidae | -27% |
| Pacific Loon | Gaviidae | +3% |
| Black-legged Kittiwake | Laridae | +21% |
| Sandhill Crane | Gruidae | +134% |
| Red-throated Loon | Gaviidae | +145% |
| Glaucous-winged Gull | Laridae | +214% |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.