Species · Utah · BBS 2025 Release · 1966–2024
Hermit Thrush Population Trend in Utah
Hermit Thrush in Utah has increased: up 29% on the route-weighted index since 1970.
+29%Since 1970
43Routes In State
54Years
Notable Hermit Thrush Trends in Utah
No notable trend signals for Hermit Thrush in Utah. See the full index history below.
Hermit Thrush Population Forecast in Utah
If the recent trend holds, Hermit Thrush in Utah is projected to stay roughly flat through 2029, near 4.5 (95% range 1.9–7.1). A 5-year backtest shows a typical error of ±50.3%, with 80% of held-out values landing inside the 95% band.
+2%Change by 2029
4.5Projected 2029 index
1.9–7.195% range
±50.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.3 | 1.7 | 6.9 |
| 2026 | 4.4 | 1.8 | 6.9 |
| 2027 | 4.4 | 1.8 | 7.0 |
| 2028 | 4.5 | 1.9 | 7.0 |
| 2029 | 4.5 | 1.9 | 7.1 |
Hermit Thrush Survey Routes in Utah
| Grizzly Rdge | 49 | 2024 | 1987 |
| Navajo Lake | 48 | 2024 | 1970 |
| Fish Lake Nf | 25 | 2024 | 1992 |
| La Sal | 24 | 2000 | 1993 |
| Heber Mtn. | 24 | 2024 | 1996 |
| Red Spur Mtn. | 23 | 2023 | 1997 |
| La Sal 3 | 23 | 2024 | 2007 |
| Wasatch Nf | 21 | 2024 | 1988 |
| La Sal 2 | 20 | 2006 | 2003 |
| Soapstone | 19 | 2024 | 1992 |
| Bryce Canyon | 16 | 2024 | 1990 |
| Beck | 15 | 1987 | 1968 |
| Uintah Nf | 14 | 1994 | 1988 |
| Gooseberry | 12 | 2024 | 1994 |
| Beck 2 | 11 | 2018 | 1990 |
| Logan Canyon | 10 | 2019 | 1997 |
| Woodruff | 10 | 2024 | 2002 |
| Ferron | 10 | 2022 | 2000 |
| Monticello | 8 | 2024 | 1998 |
| Moon Lake | 7 | 2003 | 1994 |
| Skyline Driv | 7 | 2016 | 1986 |
| Book Ridge | 6 | 2006 | 2003 |
| Cleveland | 6 | 2000 | 1992 |
| Hyrum | 5 | 1977 | 1975 |
| Richfield | 5 | 2019 | 1994 |
Hermit Thrush Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.