Species · BCR 24 · BBS 2025 Release · 1966–2024
Brown Thrasher In Central Hardwoods
Brown Thrasher in Central Hardwoods has declined: down 49% on the route-weighted index since 1968.
-49%Since 1968
163Routes In Region
58Years
Notable Signals
No notable trend signals for Brown Thrasher in Central Hardwoods. See the full index history below.
Forecast
If the recent trend holds, Brown Thrasher in Central Hardwoods is projected to stay roughly flat through 2029, near 3.2 (95% range 1.8–4.7). A 5-year backtest shows a typical error of ±7.2%, with 100% of held-out values landing inside the 95% band.
-0%Change by 2029
3.2Projected 2029 index
1.8–4.795% range
±7.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.5 | 2.0 | 5.0 |
| 2026 | 3.4 | 2.0 | 4.9 |
| 2027 | 3.4 | 1.9 | 4.8 |
| 2028 | 3.3 | 1.8 | 4.8 |
| 2029 | 3.2 | 1.8 | 4.7 |
Routes In Central Hardwoods
| Boxville | KENTUCKY | 17 | 1983 |
| Collinwood | TENNESSEE | 13 | 2024 |
| Valhermoso Spgs | ALABAMA | 12 | 2010 |
| Georgia | INDIANA | 11 | 2024 |
| Valhermoso Spg 2 | ALABAMA | 10 | 2014 |
| Bremen | ILLINOIS | 10 | 2024 |
| Union Hill | TENNESSEE | 10 | 2024 |
| Glen | TENNESSEE | 10 | 2024 |
| Centerton | ARKANSAS | 9 | 2024 |
| Pimento | INDIANA | 8 | 2024 |
| Drakesboro | KENTUCKY | 8 | 2003 |
| Doe Run | MISSOURI | 8 | 2024 |
| Elkmont | ALABAMA | 7 | 2024 |
| Triana | ALABAMA | 7 | 2012 |
| Yellville | ARKANSAS | 7 | 2010 |
| Sulphur Lick | KENTUCKY | 7 | 2024 |
| Merrimac | KENTUCKY | 7 | 2024 |
| Plum | KENTUCKY | 7 | 2024 |
| Morganfield | KENTUCKY | 7 | 2024 |
| Pleasurevill | KENTUCKY | 7 | 2024 |
| Marshfield | MISSOURI | 7 | 2023 |
| Rome | OHIO | 7 | 2024 |
| Fulton | ARKANSAS | 6 | 2024 |
| Birds | ILLINOIS | 6 | 2022 |
| Belknap | ILLINOIS | 6 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.