Species · Delaware · BBS 2025 Release · 1966–2024
Tufted Titmouse Population Trend in Delaware
Tufted Titmouse in Delaware has surged: up 97% on the route-weighted index since 1968.
+97%Since 1968
17Routes In State
58Years
Notable Tufted Titmouse Trends in Delaware
long arc increasecomputed index
Tufted Titmouse has surged in Delaware: up 97% on the route-weighted index since 1968.
Tufted Titmouse Population Forecast in Delaware
If the recent trend holds, Tufted Titmouse in Delaware is projected to stay roughly flat through 2029, near 20 (95% range 13–28). A 5-year backtest shows a typical error of ±14.5%, with 80% of held-out values landing inside the 95% band.
+5%Change by 2029
20Projected 2029 index
13–2895% range
±14.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 19 | 12 | 27 |
| 2026 | 20 | 12 | 27 |
| 2027 | 20 | 13 | 27 |
| 2028 | 20 | 13 | 27 |
| 2029 | 20 | 13 | 28 |
Tufted Titmouse Survey Routes in Delaware
| Milton 2 | 38 | 2017 | 2017 |
| Pepperbox 2 | 35 | 2024 | 2017 |
| Holleyville | 33 | 2004 | 1966 |
| Millsboro | 30 | 2024 | 2017 |
| Pepperbox | 26 | 2016 | 1998 |
| Harrington | 20 | 2024 | 1966 |
| Georgetown | 19 | 2022 | 1992 |
| Milton | 16 | 2016 | 1966 |
| Frankford | 13 | 2012 | 1966 |
| Wilmington | 12 | 2014 | 1966 |
| Holleyville 2 | 12 | 2024 | 2006 |
| Lowes Xrds | 9 | 1991 | 1966 |
| Mt Pleasant | 4 | 2019 | 1966 |
| Frederica | 4 | 2014 | 1966 |
| Bethany Bch | 4 | 1990 | 1966 |
| Blackbird | 4 | 2023 | 1994 |
| Dover | 1 | 1987 | 1966 |
Tufted Titmouse Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.