Species · BCR 24 · BBS 2025 Release · 1966–2024
Kentucky Warbler In Central Hardwoods
Kentucky Warbler in Central Hardwoods has risen sharply: up 63% on the route-weighted index since 1968.
+63%Since 1968
159Routes In Region
58Years
Notable Signals
long arc increasecomputed index
Kentucky Warbler has risen sharply in Central Hardwoods: up 63% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Kentucky Warbler in Central Hardwoods is projected to stay roughly flat through 2029, near 3.6 (95% range 2.8–4.4). A 5-year backtest shows a typical error of ±6.4%, with 100% of held-out values landing inside the 95% band.
+4%Change by 2029
3.6Projected 2029 index
2.8–4.495% range
±6.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.5 | 2.7 | 4.2 |
| 2026 | 3.5 | 2.7 | 4.3 |
| 2027 | 3.5 | 2.8 | 4.3 |
| 2028 | 3.6 | 2.8 | 4.3 |
| 2029 | 3.6 | 2.8 | 4.4 |
Routes In Central Hardwoods
| Mammoth Cave North | KENTUCKY | 25 | 2013 |
| Mammoth Cave | KENTUCKY | 19 | 2014 |
| Ozark Nf | ARKANSAS | 16 | 2024 |
| Georgia | INDIANA | 16 | 2024 |
| Marshall | ARKANSAS | 15 | 2021 |
| Hoosier | INDIANA | 15 | 2024 |
| Boston Mtn. | ARKANSAS | 13 | 2024 |
| Sandusky | ILLINOIS | 13 | 2023 |
| Centerville | MISSOURI | 13 | 2024 |
| Collinwood | TENNESSEE | 12 | 2024 |
| Joy | KENTUCKY | 11 | 2023 |
| Rupert | ARKANSAS | 10 | 2024 |
| Compton | ARKANSAS | 10 | 2022 |
| Cross Plains | INDIANA | 10 | 2024 |
| Hegira | KENTUCKY | 10 | 2024 |
| Graniteville | MISSOURI | 10 | 2024 |
| Silver Pt | TENNESSEE | 10 | 2024 |
| Belmont | INDIANA | 9 | 2024 |
| Corydon | INDIANA | 9 | 2024 |
| Rueter 2 | MISSOURI | 9 | 2024 |
| Rome | OHIO | 9 | 2024 |
| Cave In Rock | ILLINOIS | 8 | 2024 |
| Syracuse | MISSOURI | 8 | 2024 |
| Williamsvill | MISSOURI | 8 | 2024 |
| Lincoln | MISSOURI | 8 | 2024 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.