Species · BCR 20 · BBS 2025 Release · 1966–2024
Bronzed Cowbird In Edwards Plateau
Bronzed Cowbird in Edwards Plateau has held roughly steady: up 7% on the route-weighted index since 1978.
+7%Since 1978
9Routes In Region
42Years
Notable Signals
No notable trend signals for Bronzed Cowbird in Edwards Plateau. See the full index history below.
Forecast
If the recent trend holds, Bronzed Cowbird in Edwards Plateau is projected to rise about 296% by 2029 — from 0.13 in 2024 to a central estimate of 0.49 (95% range 0.00–1.3). A 5-year backtest shows a typical error of ±297.1%, with 100% of held-out values landing inside the 95% band.
+296%Change by 2029
0.49Projected 2029 index
0.00–1.395% range
±297.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.49 | 0.00 | 1.2 |
| 2026 | 0.49 | 0.00 | 1.2 |
| 2027 | 0.49 | 0.00 | 1.2 |
| 2028 | 0.49 | 0.00 | 1.2 |
| 2029 | 0.49 | 0.00 | 1.3 |
Routes In Edwards Plateau
| San Saba | TEXAS | 2 | 1994 |
| Indian Mtn | TEXAS | 2 | 2003 |
| Montell | TEXAS | 2 | 2024 |
| Rockspring | TEXAS | 2 | 1998 |
| Boerne | TEXAS | 1 | 1992 |
| Utopia | TEXAS | 1 | 2023 |
| Harper | TEXAS | 1 | 1985 |
| Leakey | TEXAS | 1 | 2005 |
| Prairie Mtn. | TEXAS | 1 | 2023 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.