Species · Texas · BBS 2025 Release · 1966–2024
Rock Wren Population Trend in Texas
Rock Wren in Texas has fallen sharply: down 54% on the route-weighted index since 1969.
-54%Since 1969
48Routes In State
57Years
Notable Rock Wren Trends in Texas
long arc declinecomputed index
Rock Wren has fallen sharply in Texas: down 54% on the route-weighted index since 1969.
Rock Wren Population Forecast in Texas
If the recent trend holds, Rock Wren in Texas is projected to rise about 36% by 2029 — from 0.08 in 2024 to a central estimate of 0.11 (95% range 0.00–0.23). A 5-year backtest shows a typical error of ±91.2%, with 100% of held-out values landing inside the 95% band.
+36%Change by 2029
0.11Projected 2029 index
0.00–0.2395% range
±91.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.11 | 0.00 | 0.23 |
| 2026 | 0.11 | 0.00 | 0.23 |
| 2027 | 0.11 | 0.00 | 0.23 |
| 2028 | 0.11 | 0.00 | 0.23 |
| 2029 | 0.11 | 0.00 | 0.23 |
Rock Wren Survey Routes in Texas
| Devils R Cyn | 7 | 2008 | 1995 |
| Bear Mtn | 6 | 2024 | 1992 |
| Pidcoke | 5 | 1995 | 1995 |
| Ft. Davis | 4 | 2023 | 2004 |
| Casa Piedra | 4 | 2022 | 1987 |
| Shafter | 4 | 1985 | 1969 |
| Utopia | 2 | 1997 | 1997 |
| San Saba | 2 | 1969 | 1969 |
| Hot Springs | 2 | 2023 | 1967 |
| Valentine | 2 | 1987 | 1969 |
| Dalhart | 2 | 2024 | 1996 |
| Chisos Basin | 1 | 2023 | 1995 |
| Marfa | 1 | 2018 | 2004 |
| Van Horn | 1 | 2024 | 2023 |
| Valley Spgs | 1 | 2000 | 1998 |
| Adamsville | 1 | 1987 | 1987 |
| Pear Valley | 1 | 1977 | 1977 |
| Winchell | 1 | 1978 | 1974 |
| Castolon | 1 | 2024 | 1994 |
| Albany | 1 | 1995 | 1969 |
| Allen Creek | 1 | 2019 | 2004 |
| Ft. Stockton | 1 | 2013 | 2009 |
| Toyahvale | 1 | 2024 | 1996 |
| Quitman Cyn. | 1 | 2009 | 2005 |
| Weinert | 1 | 1988 | 1988 |
Rock Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.