Species · Utah · BBS 2025 Release · 1966–2024
Pine Grosbeak Population Trend in Utah
Pine Grosbeak in Utah has collapsed: down 77% on the route-weighted index since 1987.
-77%Since 1987
13Routes In State
31Years
Notable Pine Grosbeak Trends in Utah
long arc declinecomputed index
Pine Grosbeak has collapsed in Utah: down 77% on the route-weighted index since 1987.
Pine Grosbeak Population Forecast in Utah
If the recent trend holds, Pine Grosbeak in Utah is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±214.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.00Projected 2029 index
0.00–0.1595% range
±214.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.15 |
| 2026 | 0.00 | 0.00 | 0.15 |
| 2027 | 0.00 | 0.00 | 0.15 |
| 2028 | 0.00 | 0.00 | 0.15 |
| 2029 | 0.00 | 0.00 | 0.15 |
Pine Grosbeak Survey Routes in Utah
| Navajo Lake | 4 | 1968 | 1968 |
| La Sal | 2 | 2000 | 1993 |
| La Sal 3 | 2 | 2022 | 2010 |
| Skyline Driv | 1 | 1992 | 1986 |
| Gooseberry | 1 | 2008 | 1997 |
| Grizzly Rdge | 1 | 2023 | 1997 |
| Dixie Nf | 1 | 1996 | 1996 |
| Wasatch Nf | 1 | 2023 | 1988 |
| Red Spur Mtn. | 1 | 2023 | 2006 |
| Heber Mtn. | 1 | 2024 | 1996 |
| Fish Lake Nf | 1 | 2013 | 2004 |
| Ferron | 1 | 2006 | 2006 |
| Soapstone | 1 | 2024 | 1996 |
Pine Grosbeak Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.