Species · Indiana · BBS 2025 Release · 1966–2024
Chestnut-sided Warbler Population Trend in Indiana
Chestnut-sided Warbler in Indiana has edged down: down 21% on the route-weighted index since 1981.
-21%Since 1981
12Routes In State
24Years
Notable Chestnut-sided Warbler Trends in Indiana
No notable trend signals for Chestnut-sided Warbler in Indiana. See the full index history below.
Chestnut-sided Warbler Population Forecast in Indiana
If the recent trend holds, Chestnut-sided Warbler in Indiana is projected to stay roughly flat through 2021, near 0.03 (95% range 0.00–0.10). A 5-year backtest shows a typical error of ±38.6%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2021
0.03Projected 2021 index
0.00–0.1095% range
±38.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2017 | 0.03 | 0.00 | 0.11 |
| 2018 | 0.03 | 0.00 | 0.11 |
| 2019 | 0.03 | 0.00 | 0.10 |
| 2020 | 0.03 | 0.00 | 0.10 |
| 2021 | 0.03 | 0.00 | 0.10 |
Chestnut-sided Warbler Survey Routes in Indiana
| Hoosier | 1 | 2000 | 1999 |
| Clear Spring | 1 | 2007 | 2006 |
| Indiana Dune | 1 | 2016 | 1993 |
| Columbia Cty | 1 | 1981 | 1981 |
| Packertown | 1 | 1978 | 1978 |
| Ellis | 1 | 1977 | 1977 |
| Portage 2 | 1 | 2015 | 2005 |
| Packertown 2 | 1 | 2016 | 2015 |
| Thorntown | 1 | 1987 | 1987 |
| Laporte | 1 | 2004 | 2001 |
| Muncie | 1 | 1981 | 1981 |
| Belmont | 1 | 2015 | 2015 |
Chestnut-sided Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.