Species · BCR 37 · BBS 2025 Release · 1966–2024
Lesser Goldfinch In Gulf Coastal Prairie
Lesser Goldfinch in Gulf Coastal Prairie has surged: up 233% on the route-weighted index since 1997.
+233%Since 1997
6Routes In Region
26Years
Notable Signals
long arc increasecomputed index
Lesser Goldfinch has surged in Gulf Coastal Prairie: up 233% on the route-weighted index since 1997.
Forecast
If the recent trend holds, Lesser Goldfinch in Gulf Coastal Prairie is projected to rise about 431% by 2029 — from 0.14 in 2024 to a central estimate of 0.76 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±90.3%, with 80% of held-out values landing inside the 95% band.
+431%Change by 2029
0.76Projected 2029 index
0.00–2.595% range
±90.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.76 | 0.00 | 2.5 |
| 2026 | 0.76 | 0.00 | 2.5 |
| 2027 | 0.76 | 0.00 | 2.5 |
| 2028 | 0.76 | 0.00 | 2.5 |
| 2029 | 0.76 | 0.00 | 2.5 |
Routes In Gulf Coastal Prairie
| Loyola Beach | TEXAS | 32 | 2009 |
| San Pedro | TEXAS | 14 | 2023 |
| Lag Atascosa | TEXAS | 2 | 2024 |
| Goliad Prairie | TEXAS | 2 | 2016 |
| Loyola Beach 2 | TEXAS | 1 | 2024 |
| Padre Island Pais | TEXAS | 1 | 2015 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.