Species · New York · BBS 2025 Release · 1966–2024
Marsh Wren Population Trend in New York
Marsh Wren in New York has edged up: up 13% on the route-weighted index since 1968.
+13%Since 1968
36Routes In State
54Years
Notable Marsh Wren Trends in New York
No notable trend signals for Marsh Wren in New York. See the full index history below.
Marsh Wren Population Forecast in New York
If the recent trend holds, Marsh Wren in New York is projected to fall about 43% by 2029 — from 0.17 in 2024 to a central estimate of 0.10 (95% range 0.00–0.23). A 5-year backtest shows a typical error of ±118.1%, with 80% of held-out values landing inside the 95% band.
-43%Change by 2029
0.10Projected 2029 index
0.00–0.2395% range
±118.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.10 | 0.00 | 0.23 |
| 2026 | 0.10 | 0.00 | 0.23 |
| 2027 | 0.10 | 0.00 | 0.23 |
| 2028 | 0.10 | 0.00 | 0.23 |
| 2029 | 0.10 | 0.00 | 0.23 |
Marsh Wren Survey Routes in New York
| Philadelphia | 8 | 2024 | 1980 |
| Jones Beach | 3 | 2006 | 1966 |
| Westhampton | 2 | 2006 | 1969 |
| Cicero Ctr | 2 | 1995 | 1966 |
| Underwood 2 | 2 | 2008 | 2007 |
| North Easton | 2 | 2017 | 1974 |
| Huntington | 1 | 2019 | 1975 |
| Rhinebeck | 1 | 2015 | 2008 |
| Warwick | 1 | 1974 | 1968 |
| Rifton | 1 | 1986 | 1986 |
| W Shokan | 1 | 1989 | 1989 |
| Petersburg | 1 | 1990 | 1990 |
| Ballston Lk | 1 | 1970 | 1967 |
| Harris Hill | 1 | 2022 | 2005 |
| S Berne | 1 | 1997 | 1997 |
| Oriskany Fls | 1 | 2005 | 2005 |
| Phillips Cr | 1 | 1968 | 1967 |
| Orleans | 1 | 2012 | 2012 |
| Mendon | 1 | 2017 | 1987 |
| West Seneca | 1 | 2004 | 1966 |
| Cattaraugus | 1 | 1972 | 1972 |
| Castile | 1 | 2017 | 2017 |
| Randolph | 1 | 1968 | 1967 |
| Byron | 1 | 2023 | 1969 |
| Churchville | 1 | 1968 | 1968 |
Marsh Wren Population Trend in Other States
alabamaarizonacaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaslouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatexasutahvermontvirginiawashingtonwisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.