Species · Tennessee · BBS 2025 Release · 1966–2024
Carolina Wren Population Trend in Tennessee
Carolina Wren in Tennessee has surged: up 183% on the route-weighted index since 1968.
+183%Since 1968
55Routes In State
58Years
Notable Carolina Wren Trends in Tennessee
long arc increasecomputed index
Carolina Wren has surged in Tennessee: up 183% on the route-weighted index since 1968.
Carolina Wren Population Forecast in Tennessee
If the recent trend holds, Carolina Wren in Tennessee is projected to rise about 19% by 2029 — from 23 in 2024 to a central estimate of 28 (95% range 21–34). A 5-year backtest shows a typical error of ±29.2%, with 40% of held-out values landing inside the 95% band.
+19%Change by 2029
28Projected 2029 index
21–3495% range
±29.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 26 | 20 | 33 |
| 2026 | 27 | 20 | 33 |
| 2027 | 27 | 20 | 34 |
| 2028 | 27 | 21 | 34 |
| 2029 | 28 | 21 | 34 |
Carolina Wren Survey Routes in Tennessee
| Corryton Rd | 81 | 2019 | 1966 |
| Lovell | 66 | 2019 | 1966 |
| Mansfield | 44 | 2024 | 1966 |
| Jones Gap | 44 | 2019 | 1982 |
| Big Sandy | 40 | 2024 | 1966 |
| Collinwood | 40 | 2024 | 1966 |
| Petersburg | 38 | 2019 | 1966 |
| Trace Lewis | 35 | 2017 | 2013 |
| Climer | 34 | 2004 | 1967 |
| Campbellsville | 33 | 2019 | 1966 |
| Smokey Jct | 31 | 2022 | 1966 |
| Signal Mtn | 29 | 2024 | 1979 |
| Silerton | 29 | 2024 | 1966 |
| Humboldt | 29 | 2024 | 1966 |
| Moscow | 28 | 2024 | 1967 |
| Trenton | 28 | 2023 | 1966 |
| Bradyville | 28 | 2021 | 1966 |
| Silver Pt | 27 | 2024 | 1966 |
| Willis Sprng | 27 | 2023 | 1994 |
| White House | 26 | 2019 | 1966 |
| Oliver Spgs | 26 | 2022 | 1966 |
| Mt Olive | 26 | 2024 | 1966 |
| Cornpone | 26 | 2024 | 1990 |
| Pond Creek | 24 | 2024 | 1966 |
| Union Hill | 23 | 2024 | 1967 |
Carolina Wren Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.