Species · Arizona · BBS 2025 Release · 1966–2024
Green-tailed Towhee Population Trend in Arizona
Green-tailed Towhee in Arizona has surged: up 503% on the route-weighted index since 1988.
+503%Since 1988
13Routes In State
27Years
Notable Green-tailed Towhee Trends in Arizona
long arc increasecomputed index
Green-tailed Towhee has surged in Arizona: up 503% on the route-weighted index since 1988.
Green-tailed Towhee Population Forecast in Arizona
If the recent trend holds, Green-tailed Towhee in Arizona is projected to fall about 49% by 2028 — from 0.55 in 2023 to a central estimate of 0.28 (95% range 0.07–0.49). A 5-year backtest shows a typical error of ±37.8%, with 60% of held-out values landing inside the 95% band.
-49%Change by 2028
0.28Projected 2028 index
0.07–0.4995% range
±37.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.26 | 0.04 | 0.47 |
| 2025 | 0.26 | 0.05 | 0.47 |
| 2026 | 0.27 | 0.06 | 0.48 |
| 2027 | 0.27 | 0.06 | 0.48 |
| 2028 | 0.28 | 0.07 | 0.49 |
Green-tailed Towhee Survey Routes in Arizona
| Alpine | 13 | 2023 | 1992 |
| Tsaile | 9 | 2023 | 1993 |
| Seligman | 4 | 2013 | 2008 |
| Sprucedale | 2 | 2021 | 2021 |
| Happy Jack | 2 | 2002 | 2002 |
| Cow Springs | 2 | 2018 | 2018 |
| Sunizona | 1 | 1997 | 1988 |
| House Rock | 1 | 2019 | 1993 |
| Flagstaff | 1 | 2022 | 1994 |
| Sawmill | 1 | 2006 | 2006 |
| Peach Spring | 1 | 2010 | 2010 |
| Blue | 1 | 1986 | 1978 |
| Maine | 1 | 2014 | 1997 |
Green-tailed Towhee Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.