Species · Alaska · BBS 2025 Release · 1966–2024
White-crowned Sparrow Population Trend in Alaska
White-crowned Sparrow in Alaska has declined: down 28% on the route-weighted index since 1976.
-28%Since 1976
106Routes In State
47Years
Notable White-crowned Sparrow Trends in Alaska
No notable trend signals for White-crowned Sparrow in Alaska. See the full index history below.
White-crowned Sparrow Population Forecast in Alaska
If the recent trend holds, White-crowned Sparrow in Alaska is projected to stay roughly flat through 2029, near 22 (95% range 10–34). A 5-year backtest shows a typical error of ±12.4%, with 100% of held-out values landing inside the 95% band.
-1%Change by 2029
22Projected 2029 index
10–3495% range
±12.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 22 | 11 | 34 |
| 2026 | 22 | 10 | 34 |
| 2027 | 22 | 10 | 34 |
| 2028 | 22 | 10 | 34 |
| 2029 | 22 | 10 | 34 |
White-crowned Sparrow Survey Routes in Alaska
| Monahan | 175 | 2021 | 1983 |
| Cantwell | 162 | 2021 | 1982 |
| Savage | 137 | 2024 | 1986 |
| Delta | 112 | 2024 | 1995 |
| Toklat | 96 | 2024 | 1982 |
| Maclaren | 78 | 2024 | 1982 |
| Mt. Fairplay | 77 | 2024 | 1993 |
| Sheep Mtn | 73 | 2017 | 1983 |
| Eagle | 72 | 2024 | 1982 |
| Lake Louise | 72 | 2014 | 1993 |
| Dietrich Cmp | 63 | 2024 | 1993 |
| Caribou Mtn. | 62 | 2024 | 1993 |
| Kuskulana | 57 | 2024 | 1990 |
| King Salmon | 48 | 2024 | 1993 |
| Circle | 46 | 2024 | 1986 |
| Chatanika R | 46 | 2023 | 1968 |
| Wasilla | 44 | 1983 | 1983 |
| Paxson Lake | 44 | 1997 | 1991 |
| Galbraith L. | 44 | 2024 | 1993 |
| Mccarthy Rd2 | 42 | 2024 | 1989 |
| Kanuti Lake | 42 | 2024 | 2006 |
| Chicken | 40 | 2024 | 1992 |
| Mcgrath | 40 | 2022 | 1997 |
| Kalifonsky | 39 | 2023 | 1982 |
| Coldfoot | 39 | 2024 | 1994 |
White-crowned Sparrow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.