Species · Utah · BBS 2025 Release · 1966–2024
Bewick's Wren Population Trend in Utah
Bewick's Wren in Utah has held roughly steady: down 8% on the route-weighted index since 1981.
-8%Since 1981
56Routes In State
42Years
Notable Bewick's Wren Trends in Utah
No notable trend signals for Bewick's Wren in Utah. See the full index history below.
Bewick's Wren Population Forecast in Utah
If the recent trend holds, Bewick's Wren in Utah is projected to rise about 27% by 2029 — from 0.41 in 2024 to a central estimate of 0.52 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±141.9%, with 100% of held-out values landing inside the 95% band.
+27%Change by 2029
0.52Projected 2029 index
0.00–1.195% range
±141.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.51 | 0.00 | 1.1 |
| 2026 | 0.51 | 0.00 | 1.1 |
| 2027 | 0.51 | 0.00 | 1.1 |
| 2028 | 0.51 | 0.00 | 1.1 |
| 2029 | 0.52 | 0.00 | 1.1 |
Bewick's Wren Survey Routes in Utah
| Cane Spr Des | 8 | 1992 | 1992 |
| Arches Np | 5 | 2006 | 1996 |
| Vernon | 5 | 2024 | 1992 |
| Shivwitz | 5 | 2024 | 1992 |
| Alton | 4 | 2017 | 1997 |
| Blanding | 4 | 2019 | 2005 |
| Boulder | 3 | 2018 | 1986 |
| Aneth | 3 | 2008 | 2008 |
| Richfield | 3 | 2018 | 2000 |
| Glen Canyon | 3 | 2023 | 2009 |
| Westwater | 3 | 2024 | 1997 |
| Tule Valley | 3 | 2013 | 1999 |
| Jensen | 3 | 2000 | 2000 |
| Bonanza | 3 | 1992 | 1992 |
| Wah Wah | 3 | 2003 | 1989 |
| Willow Creek | 2 | 2024 | 2000 |
| Hanksville | 2 | 2023 | 2023 |
| Navajo Lake | 2 | 2016 | 2016 |
| Fayette | 2 | 2021 | 2005 |
| Gooseberry | 2 | 2009 | 2003 |
| Hatch | 2 | 2023 | 2000 |
| Vernal | 2 | 2017 | 2003 |
| La Sal 3 | 2 | 2024 | 2007 |
| Newcastle | 2 | 2021 | 1997 |
| Escalante | 2 | 2018 | 2002 |
Bewick's Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.