Guild · Wisconsin · BBS 2025 Release · 1966–2024
Waterfowl In Wisconsin
13 species in this guild. As a group they are +201% since 1968.
Guild Signals
No notable trend signals for waterfowl in Wisconsin. See the full index history below.
Forecast
If the recent trend holds, Waterfowl in Wisconsin is projected to rise about 65% by 2029 — from 1.7 in 2024 to a central estimate of 2.8 (95% range 1.6–4.1). A 5-year backtest shows a typical error of ±33.5%, with 80% of held-out values landing inside the 95% band.
+65%Change by 2029
2.8Projected 2029 index
1.6–4.195% range
±33.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.7 | 1.5 | 3.9 |
| 2026 | 2.7 | 1.5 | 3.9 |
| 2027 | 2.8 | 1.5 | 4.0 |
| 2028 | 2.8 | 1.6 | 4.0 |
| 2029 | 2.8 | 1.6 | 4.1 |
Member Species In Wisconsin
| Red-breasted Merganser | Anatidae | -90% |
| Blue-winged Teal | Anatidae | -85% |
| American Black Duck | Anatidae | -77% |
| Mallard | Anatidae | -55% |
| Northern Pintail | Anatidae | -51% |
| Ring-necked Duck | Anatidae | -40% |
| Hooded Merganser | Anatidae | -20% |
| Green-winged Teal | Anatidae | -5% |
| Northern Shoveler | Anatidae | +20% |
| Common Merganser | Anatidae | +137% |
| Wood Duck | Anatidae | +190% |
| Trumpeter Swan | Anatidae | +675% |
| Canada Goose | Anatidae | 226× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.