Species · Wyoming · BBS 2025 Release · 1966–2024
White-crowned Sparrow Population Trend in Wyoming
White-crowned Sparrow in Wyoming has increased: up 27% on the route-weighted index since 1970.
+27%Since 1970
55Routes In State
55Years
Notable White-crowned Sparrow Trends in Wyoming
No notable trend signals for White-crowned Sparrow in Wyoming. See the full index history below.
White-crowned Sparrow Population Forecast in Wyoming
If the recent trend holds, White-crowned Sparrow in Wyoming is projected to rise about 51% by 2029 — from 2.0 in 2024 to a central estimate of 3.1 (95% range 1.3–4.9). A 5-year backtest shows a typical error of ±28.4%, with 100% of held-out values landing inside the 95% band.
+51%Change by 2029
3.1Projected 2029 index
1.3–4.995% range
±28.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.0 | 1.2 | 4.7 |
| 2026 | 3.0 | 1.2 | 4.8 |
| 2027 | 3.0 | 1.2 | 4.8 |
| 2028 | 3.0 | 1.3 | 4.8 |
| 2029 | 3.1 | 1.3 | 4.9 |
White-crowned Sparrow Survey Routes in Wyoming
| Yellowstone | 47 | 2022 | 1987 |
| Buckskin Mtn | 45 | 2021 | 1980 |
| Soda Lake | 32 | 2024 | 1980 |
| Big Sandy | 26 | 2024 | 1994 |
| Ryan Park | 26 | 2023 | 1993 |
| Hayden Val | 24 | 1986 | 1985 |
| Bald Mtn | 22 | 2024 | 1990 |
| Colter Bay 2 | 18 | 2024 | 2019 |
| Fox Park | 14 | 2024 | 1992 |
| Ne Entrance | 12 | 2021 | 1982 |
| Moose | 12 | 2024 | 1976 |
| Hunter Peak | 11 | 2024 | 1988 |
| Mammoth | 9 | 2024 | 1982 |
| Moran | 8 | 2016 | 2002 |
| Savery | 7 | 1995 | 1989 |
| Horse Creek | 7 | 2024 | 1980 |
| Colter Bay | 5 | 1999 | 1968 |
| Riverside | 5 | 2024 | 1994 |
| Crazy Woman | 5 | 2024 | 1979 |
| Daniel | 5 | 1985 | 1981 |
| Fiddler Lk | 5 | 2024 | 1979 |
| Savery 2 | 5 | 2024 | 2007 |
| Meeteetse | 4 | 2018 | 1993 |
| Wilson | 4 | 2024 | 1979 |
| Anchor | 4 | 2008 | 2004 |
White-crowned Sparrow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.