Species · California · BBS 2025 Release · 1966–2024
Green-tailed Towhee Population Trend in California
Green-tailed Towhee in California has surged: up 110% on the route-weighted index since 1970.
+110%Since 1970
85Routes In State
56Years
Notable Green-tailed Towhee Trends in California
long arc increasecomputed index
Green-tailed Towhee has surged in California: up 110% on the route-weighted index since 1970.
Green-tailed Towhee Population Forecast in California
If the recent trend holds, Green-tailed Towhee in California is projected to rise about 14% by 2029 — from 2.5 in 2024 to a central estimate of 2.9 (95% range 1.8–3.9). A 5-year backtest shows a typical error of ±14%, with 100% of held-out values landing inside the 95% band.
+14%Change by 2029
2.9Projected 2029 index
1.8–3.995% range
±14%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.8 | 1.8 | 3.9 |
| 2026 | 2.8 | 1.8 | 3.9 |
| 2027 | 2.9 | 1.8 | 3.9 |
| 2028 | 2.9 | 1.8 | 3.9 |
| 2029 | 2.9 | 1.8 | 3.9 |
Green-tailed Towhee Survey Routes in California
| Bodie | 84 | 2024 | 1982 |
| Big Bear | 40 | 1986 | 1969 |
| Crowley Lake | 39 | 2024 | 1972 |
| Valyermo | 34 | 2019 | 1970 |
| Deep Springs | 27 | 2022 | 1972 |
| Little Truckee | 23 | 2023 | 1997 |
| Pine Mountain | 22 | 2017 | 1997 |
| Eagle Lake | 20 | 2024 | 1969 |
| Last Chance | 19 | 2019 | 1993 |
| Chilcoot | 18 | 2024 | 1998 |
| Benton | 13 | 2024 | 1973 |
| Westville | 12 | 2024 | 1971 |
| Dardanelle | 11 | 2019 | 1972 |
| Johnsville | 11 | 2024 | 1975 |
| South Fork Mtn | 11 | 2022 | 2000 |
| Ship Mtn. | 10 | 2016 | 1995 |
| Crestview | 10 | 2024 | 1997 |
| Tionesta | 8 | 2021 | 1997 |
| Medicine Mtn. | 7 | 2015 | 2000 |
| Woodfords | 6 | 2024 | 1973 |
| Macdoel | 6 | 1993 | 1976 |
| Bridgeport | 6 | 1977 | 1973 |
| Mt Shasta | 6 | 2019 | 1978 |
| Cottage Spgs | 5 | 1968 | 1968 |
| Green Valley | 5 | 2022 | 1970 |
Green-tailed Towhee Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.