Species · Ohio · BBS 2025 Release · 1966–2024
Marsh Wren Population Trend in Ohio
Marsh Wren in Ohio has edged down: down 19% on the route-weighted index since 1974.
-19%Since 1974
9Routes In State
18Years
Notable Marsh Wren Trends in Ohio
No notable trend signals for Marsh Wren in Ohio. See the full index history below.
Marsh Wren Population Forecast in Ohio
If the recent trend holds, Marsh Wren in Ohio is projected to stay roughly flat through 2003, near 0.05 (95% range 0.00–0.12). A 5-year backtest shows a typical error of ±91.7%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2003
0.05Projected 2003 index
0.00–0.1295% range
±91.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 1999 | 0.05 | 0.00 | 0.12 |
| 2000 | 0.05 | 0.00 | 0.12 |
| 2001 | 0.05 | 0.00 | 0.12 |
| 2002 | 0.05 | 0.00 | 0.12 |
| 2003 | 0.05 | 0.00 | 0.12 |
Marsh Wren Survey Routes in Ohio
| Bolins Mills | 3 | 1997 | 1997 |
| Herner Crns | 2 | 1988 | 1988 |
| New Somerset | 2 | 1987 | 1987 |
| Bloomville | 1 | 1997 | 1997 |
| Graytown | 1 | 1966 | 1966 |
| Fulton | 1 | 1974 | 1974 |
| Limestone | 1 | 1986 | 1986 |
| Middlefield | 1 | 1998 | 1973 |
| Strongsville | 1 | 1973 | 1973 |
Marsh Wren Population Trend in Other States
alabamaarizonacaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaslouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatexasutahvermontvirginiawashingtonwisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.