Species · Utah · BBS 2025 Release · 1966–2024
Canada Jay Population Trend in Utah
Canada Jay in Utah has collapsed: down 89% on the route-weighted index since 1979.
-89%Since 1979
14Routes In State
34Years
Notable Canada Jay Trends in Utah
long arc declinecomputed index
Canada Jay has collapsed in Utah: down 89% on the route-weighted index since 1979.
Canada Jay Population Forecast in Utah
If the recent trend holds, Canada Jay in Utah is projected to fall about 100% by 2029 — from 0.09 in 2024 to a central estimate of 0.00 (95% range 0.00–0.17). A 5-year backtest shows a typical error of ±393.9%, with 80% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.1795% range
±393.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.17 |
| 2026 | 0.00 | 0.00 | 0.17 |
| 2027 | 0.00 | 0.00 | 0.17 |
| 2028 | 0.00 | 0.00 | 0.17 |
| 2029 | 0.00 | 0.00 | 0.17 |
Canada Jay Survey Routes in Utah
| Uintah Nf | 6 | 1987 | 1987 |
| Navajo Lake | 6 | 1974 | 1974 |
| Wasatch Nf | 4 | 2024 | 1988 |
| Altonah | 3 | 1979 | 1970 |
| Ferron | 3 | 2002 | 2002 |
| Soapstone | 3 | 2013 | 1992 |
| Gooseberry | 2 | 2006 | 2000 |
| Grizzly Rdge | 2 | 2023 | 1992 |
| La Sal | 1 | 1996 | 1996 |
| Dixie Nf | 1 | 2006 | 2006 |
| La Sal 2 | 1 | 2004 | 2004 |
| Heber Mtn. | 1 | 2011 | 1996 |
| La Sal 3 | 1 | 2024 | 2011 |
| Jericho Junction | 1 | 1997 | 1997 |
Canada Jay Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.