Species · Nebraska · BBS 2025 Release · 1966–2024
Trumpeter Swan Population Trend in Nebraska
Trumpeter Swan in Nebraska has fallen sharply: down 58% on the route-weighted index since 1994.
-58%Since 1994
6Routes In State
23Years
Notable Trumpeter Swan Trends in Nebraska
long arc declinecomputed index
Trumpeter Swan has fallen sharply in Nebraska: down 58% on the route-weighted index since 1994.
Trumpeter Swan Population Forecast in Nebraska
If the recent trend holds, Trumpeter Swan in Nebraska is projected to stay roughly flat through 2029, near 0.11 (95% range 0.00–0.24). A 5-year backtest shows a typical error of ±230.6%, with 80% of held-out values landing inside the 95% band.
n/aChange by 2029
0.11Projected 2029 index
0.00–0.2495% range
±230.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.11 | 0.00 | 0.24 |
| 2026 | 0.11 | 0.00 | 0.24 |
| 2027 | 0.11 | 0.00 | 0.24 |
| 2028 | 0.11 | 0.00 | 0.24 |
| 2029 | 0.11 | 0.00 | 0.24 |
Trumpeter Swan Survey Routes in Nebraska
Trumpeter Swan Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.