Guild · New Jersey · BBS 2025 Release · 1966–2024
Waterfowl In New Jersey
6 species in this guild. As a group they are +252% since 1968.
Guild Signals
No notable trend signals for waterfowl in New Jersey. See the full index history below.
Forecast
If the recent trend holds, Waterfowl in New Jersey is projected to rise about 44% by 2029 — from 3.0 in 2024 to a central estimate of 4.3 (95% range 2.1–6.5). A 5-year backtest shows a typical error of ±52.2%, with 100% of held-out values landing inside the 95% band.
+44%Change by 2029
4.3Projected 2029 index
2.1–6.595% range
±52.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.1 | 1.9 | 6.3 |
| 2026 | 4.2 | 2.0 | 6.4 |
| 2027 | 4.2 | 2.0 | 6.4 |
| 2028 | 4.3 | 2.1 | 6.5 |
| 2029 | 4.3 | 2.1 | 6.5 |
Member Species In New Jersey
| Mute Swan | Anatidae | -82% |
| American Black Duck | Anatidae | -81% |
| Mallard | Anatidae | -51% |
| Wood Duck | Anatidae | -20% |
| Common Merganser | Anatidae | -1% |
| Canada Goose | Anatidae | 18× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.