Species · North Dakota · BBS 2025 Release · 1966–2024
Rock Wren Population Trend in North Dakota
Rock Wren in North Dakota has surged: up 142% on the route-weighted index since 1975.
+142%Since 1975
13Routes In State
44Years
Notable Rock Wren Trends in North Dakota
long arc increasecomputed index
Rock Wren has surged in North Dakota: up 142% on the route-weighted index since 1975.
Rock Wren Population Forecast in North Dakota
If the recent trend holds, Rock Wren in North Dakota is projected to stay roughly flat through 2024, near 0.19 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±229.9%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2024
0.19Projected 2024 index
0.00–0.5295% range
±229.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2020 | 0.19 | 0.00 | 0.52 |
| 2021 | 0.19 | 0.00 | 0.52 |
| 2022 | 0.19 | 0.00 | 0.52 |
| 2023 | 0.19 | 0.00 | 0.52 |
| 2024 | 0.19 | 0.00 | 0.52 |
Rock Wren Survey Routes in North Dakota
| Horsehead Lk | 4 | 1997 | 1997 |
| Golva | 2 | 2018 | 1986 |
| Ft Yates | 2 | 2003 | 1979 |
| Gorham | 1 | 2007 | 1968 |
| Roosevelt Pk | 1 | 2019 | 1982 |
| Glen Ullin | 1 | 2016 | 1986 |
| Carpio | 1 | 1985 | 1985 |
| Solen | 1 | 2015 | 2005 |
| Tobacco | 1 | 1996 | 1993 |
| Stanley | 1 | 1996 | 1983 |
| Lark | 1 | 1976 | 1970 |
| Bowman | 1 | 1986 | 1986 |
| Zap | 1 | 2001 | 1975 |
Rock Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.