Species · Texas · BBS 2025 Release · 1966–2024
Marsh Wren Population Trend in Texas
Marsh Wren in Texas has fallen sharply: down 55% on the route-weighted index since 1985.
-55%Since 1985
5Routes In State
24Years
Notable Marsh Wren Trends in Texas
No notable trend signals for Marsh Wren in Texas. See the full index history below.
Marsh Wren Population Forecast in Texas
If the recent trend holds, Marsh Wren in Texas is projected to stay roughly flat through 2027, near 0.01 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±52.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2027
0.01Projected 2027 index
0.00–0.0395% range
±52.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2023 | 0.01 | 0.00 | 0.03 |
| 2024 | 0.01 | 0.00 | 0.03 |
| 2025 | 0.01 | 0.00 | 0.03 |
| 2026 | 0.01 | 0.00 | 0.03 |
| 2027 | 0.01 | 0.00 | 0.03 |
Marsh Wren Survey Routes in Texas
| Indianola | 2 | 1996 | 1996 |
| Danbury | 2 | 1985 | 1980 |
| Winnie | 1 | 2013 | 1996 |
| Bayside 2 | 1 | 2004 | 2004 |
| Port Acres | 1 | 2022 | 1994 |
Marsh Wren Population Trend in Other States
alabamaarizonacaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaslouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotautahvermontvirginiawashingtonwisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.