Species · Texas · BBS 2025 Release · 1966–2024
Gadwall Population Trend in Texas
Gadwall in Texas has declined: down 30% on the route-weighted index since 1979.
-30%Since 1979
12Routes In State
23Years
Notable Gadwall Trends in Texas
No notable trend signals for Gadwall in Texas. See the full index history below.
Gadwall Population Forecast in Texas
If the recent trend holds, Gadwall in Texas is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±53.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.02Projected 2028 index
0.00–0.0595% range
±53.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.02 | 0.00 | 0.05 |
| 2025 | 0.02 | 0.00 | 0.05 |
| 2026 | 0.02 | 0.00 | 0.05 |
| 2027 | 0.02 | 0.00 | 0.05 |
| 2028 | 0.02 | 0.00 | 0.05 |
Gadwall Survey Routes in Texas
Gadwall Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.