Species · Wyoming · BBS 2025 Release · 1966–2024
Clay-colored Sparrow Population Trend in Wyoming
Clay-colored Sparrow in Wyoming has fallen sharply: down 64% on the route-weighted index since 1974.
-64%Since 1974
46Routes In State
48Years
Notable Clay-colored Sparrow Trends in Wyoming
long arc declinecomputed index
Clay-colored Sparrow has fallen sharply in Wyoming: down 64% on the route-weighted index since 1974.
Clay-colored Sparrow Population Forecast in Wyoming
If the recent trend holds, Clay-colored Sparrow in Wyoming is projected to stay roughly flat through 2029, near 0.32 (95% range 0.00–0.79). A 5-year backtest shows a typical error of ±1956.8%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.32Projected 2029 index
0.00–0.7995% range
±1956.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.31 | 0.00 | 0.79 |
| 2026 | 0.31 | 0.00 | 0.79 |
| 2027 | 0.31 | 0.00 | 0.79 |
| 2028 | 0.31 | 0.00 | 0.79 |
| 2029 | 0.32 | 0.00 | 0.79 |
Clay-colored Sparrow Survey Routes in Wyoming
| Patrick Draw 5 | 24 | 2007 | 2004 |
| Soda Well | 19 | 1981 | 1981 |
| Harmony | 11 | 1987 | 1987 |
| Bill | 8 | 2001 | 1996 |
| Walcott | 7 | 2014 | 1990 |
| Pine Tree | 5 | 1995 | 1993 |
| Pathfinder | 5 | 2023 | 1991 |
| Patrick Draw 6 | 4 | 2011 | 2011 |
| Piney | 4 | 1990 | 1990 |
| Worland | 4 | 1994 | 1993 |
| Hampshire | 4 | 2001 | 1994 |
| Baggs | 4 | 2004 | 2001 |
| Sundance | 2 | 1976 | 1976 |
| Dubois | 2 | 2017 | 2017 |
| Hunter Peak | 2 | 2010 | 1988 |
| Moose | 2 | 1988 | 1978 |
| Tensleep | 2 | 2009 | 2009 |
| Crazy Woman | 2 | 2015 | 2004 |
| Raven | 2 | 2015 | 1994 |
| Ne Entrance | 1 | 1995 | 1988 |
| Cody | 1 | 2005 | 2003 |
| Otto | 1 | 1990 | 1990 |
| Wyarno | 1 | 1975 | 1974 |
| Colter Bay | 1 | 1994 | 1968 |
| Nowood | 1 | 2001 | 1996 |
Clay-colored Sparrow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.