Species · California · BBS 2025 Release · 1966–2024
Lincoln's Sparrow Population Trend in California
Lincoln's Sparrow in California has declined: down 46% on the route-weighted index since 1973.
-46%Since 1973
22Routes In State
53Years
Notable Lincoln's Sparrow Trends in California
No notable trend signals for Lincoln's Sparrow in California. See the full index history below.
Lincoln's Sparrow Population Forecast in California
If the recent trend holds, Lincoln's Sparrow in California is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.12). A 5-year backtest shows a typical error of ±157.6%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.06Projected 2029 index
0.00–0.1295% range
±157.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.06 | 0.00 | 0.12 |
| 2026 | 0.06 | 0.00 | 0.12 |
| 2027 | 0.06 | 0.00 | 0.12 |
| 2028 | 0.06 | 0.00 | 0.12 |
| 2029 | 0.06 | 0.00 | 0.12 |
Lincoln's Sparrow Survey Routes in California
| Little Truckee | 5 | 2023 | 1997 |
| Big Bear | 4 | 1986 | 1970 |
| Butte Meadow | 3 | 2014 | 1981 |
| Chaos Crater | 3 | 2019 | 1999 |
| Lakeshore | 3 | 2024 | 1975 |
| Dirigio | 2 | 2012 | 1999 |
| Tuolumne Grove | 2 | 2015 | 1972 |
| Mccloud | 2 | 1979 | 1979 |
| Offield Mtn | 2 | 2014 | 1976 |
| Green Valley | 1 | 1977 | 1977 |
| Dardanelle | 1 | 2019 | 1975 |
| Whiskeytown | 1 | 2005 | 2005 |
| Sattley | 1 | 1983 | 1983 |
| Meadow Valley | 1 | 2013 | 2013 |
| Pollock Pines | 1 | 2024 | 2000 |
| Mt Pinos | 1 | 1986 | 1979 |
| Riverton | 1 | 2014 | 1973 |
| Deep Springs | 1 | 2019 | 2019 |
| Rio Dell | 1 | 1987 | 1987 |
| Woodfords | 1 | 2015 | 1972 |
| Greenhorn Mt | 1 | 2008 | 1984 |
| Valyermo | 1 | 2015 | 2015 |
Lincoln's Sparrow Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.