Species · Delaware · BBS 2025 Release · 1966–2024
Eastern Towhee Population Trend in Delaware
Eastern Towhee in Delaware has collapsed: down 84% on the route-weighted index since 1968.
-84%Since 1968
17Routes In State
58Years
Notable Eastern Towhee Trends in Delaware
long arc declinecomputed index
Eastern Towhee has collapsed in Delaware: down 84% on the route-weighted index since 1968.
Eastern Towhee Population Forecast in Delaware
If the recent trend holds, Eastern Towhee in Delaware is projected to fall about 100% by 2029 — from 2.2 in 2024 to a central estimate of 0.00 (95% range 0.00–5.7). A 5-year backtest shows a typical error of ±165.7%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–5.795% range
±165.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 5.7 |
| 2026 | 0.00 | 0.00 | 5.7 |
| 2027 | 0.00 | 0.00 | 5.7 |
| 2028 | 0.00 | 0.00 | 5.7 |
| 2029 | 0.00 | 0.00 | 5.7 |
Eastern Towhee Survey Routes in Delaware
| Pepperbox | 6 | 2016 | 1998 |
| Milton 2 | 5 | 2017 | 2017 |
| Harrington | 4 | 2024 | 1966 |
| Lowes Xrds | 4 | 1991 | 1966 |
| Frankford | 3 | 2012 | 1966 |
| Holleyville | 3 | 2004 | 1966 |
| Millsboro | 3 | 2024 | 2017 |
| Bethany Bch | 2 | 1989 | 1966 |
| Blackbird | 2 | 2024 | 1994 |
| Pepperbox 2 | 2 | 2024 | 2017 |
| Mt Pleasant | 1 | 2018 | 1966 |
| Wilmington | 1 | 2014 | 1966 |
| Frederica | 1 | 2012 | 1966 |
| Dover | 1 | 1986 | 1966 |
| Milton | 1 | 1999 | 1966 |
| Holleyville 2 | 1 | 2018 | 2006 |
| Georgetown | 1 | 2022 | 1992 |
Eastern Towhee Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.