Species · Utah · BBS 2025 Release · 1966–2024
Clark's Nutcracker Population Trend in Utah
Clark's Nutcracker in Utah has surged: up 133% on the route-weighted index since 1974.
+133%Since 1974
46Routes In State
49Years
Notable Clark's Nutcracker Trends in Utah
long arc increasecomputed index
Clark's Nutcracker has surged in Utah: up 132% on the route-weighted index since 1974.
Clark's Nutcracker Population Forecast in Utah
If the recent trend holds, Clark's Nutcracker in Utah is projected to rise about 76% by 2029 — from 0.75 in 2024 to a central estimate of 1.3 (95% range 0.33–2.3). A 5-year backtest shows a typical error of ±118.2%, with 80% of held-out values landing inside the 95% band.
+76%Change by 2029
1.3Projected 2029 index
0.33–2.395% range
±118.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.3 | 0.28 | 2.3 |
| 2026 | 1.3 | 0.29 | 2.3 |
| 2027 | 1.3 | 0.30 | 2.3 |
| 2028 | 1.3 | 0.32 | 2.3 |
| 2029 | 1.3 | 0.33 | 2.3 |
Clark's Nutcracker Survey Routes in Utah
| Ferron | 46 | 2022 | 2000 |
| Dixie Nf | 11 | 2024 | 1993 |
| Vernal | 11 | 2016 | 2003 |
| Logan Canyon | 10 | 2019 | 1999 |
| La Sal 3 | 10 | 2024 | 2007 |
| Beck | 9 | 1986 | 1986 |
| Altonah | 6 | 2015 | 1968 |
| Hill Creek | 6 | 1995 | 1993 |
| Heber Mtn. | 6 | 2023 | 1996 |
| Gooseberry | 5 | 2024 | 1994 |
| La Sal | 5 | 2000 | 1993 |
| Moon Lake 2 | 4 | 2023 | 2004 |
| Red Spur Mtn. | 4 | 2022 | 1997 |
| Bryce Canyon | 4 | 2024 | 1990 |
| Navajo Lake | 4 | 2024 | 1968 |
| Hardware Ranch | 4 | 2014 | 1995 |
| Hyrum | 3 | 1975 | 1975 |
| Grizzly Rdge | 3 | 2002 | 1996 |
| Skyline Driv | 3 | 2016 | 1987 |
| Newcastle | 3 | 2011 | 1999 |
| Monticello | 3 | 2004 | 1999 |
| Beryl | 3 | 2011 | 2008 |
| Main Canyon | 3 | 2024 | 1987 |
| Fayette | 2 | 2019 | 1998 |
| Beck 2 | 2 | 2018 | 1991 |
Clark's Nutcracker Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.