Species · BCR 37 · BBS 2025 Release · 1966–2024
Verdin In Gulf Coastal Prairie
Verdin in Gulf Coastal Prairie has fallen sharply: down 53% on the route-weighted index since 1979.
-53%Since 1979
5Routes In Region
29Years
Notable Signals
long arc declinecomputed index
Verdin has fallen sharply in Gulf Coastal Prairie: down 53% on the route-weighted index since 1979.
Forecast
If the recent trend holds, Verdin in Gulf Coastal Prairie is projected to stay roughly flat through 2029, near 0.17 (95% range 0.00–0.43). A 5-year backtest shows a typical error of ±432.2%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.17Projected 2029 index
0.00–0.4395% range
±432.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.17 | 0.00 | 0.43 |
| 2026 | 0.17 | 0.00 | 0.43 |
| 2027 | 0.17 | 0.00 | 0.43 |
| 2028 | 0.17 | 0.00 | 0.43 |
| 2029 | 0.17 | 0.00 | 0.43 |
Routes In Gulf Coastal Prairie
| San Pedro | TEXAS | 7 | 2017 |
| Lag Atascosa | TEXAS | 1 | 2024 |
| Petronila | TEXAS | 1 | 1975 |
| Loyola Beach | TEXAS | 1 | 2009 |
| L. Atascosa Nwr | TEXAS | 1 | 2023 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.