Species · BCR 24 · BBS 2025 Release · 1966–2024
Green Heron In Central Hardwoods
Green Heron in Central Hardwoods has collapsed: down 78% on the route-weighted index since 1968.
-78%Since 1968
151Routes In Region
58Years
Notable Signals
long arc declinecomputed index
Green Heron has collapsed in Central Hardwoods: down 78% on the route-weighted index since 1968.
Forecast
If the recent trend holds, Green Heron in Central Hardwoods is projected to fall about 65% by 2029 — from 0.52 in 2024 to a central estimate of 0.18 (95% range 0.00–0.58). A 5-year backtest shows a typical error of ±22.8%, with 100% of held-out values landing inside the 95% band.
-65%Change by 2029
0.18Projected 2029 index
0.00–0.5895% range
±22.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.29 | 0.00 | 0.69 |
| 2026 | 0.27 | 0.00 | 0.67 |
| 2027 | 0.24 | 0.00 | 0.64 |
| 2028 | 0.21 | 0.00 | 0.61 |
| 2029 | 0.18 | 0.00 | 0.58 |
Routes In Central Hardwoods
| Pulaski | MISSOURI | 6 | 2015 |
| Daniel Boone | KENTUCKY | 5 | 1984 |
| Belknap | ILLINOIS | 4 | 2024 |
| Iron Bridge | KENTUCKY | 4 | 1988 |
| Sedalia | MISSOURI | 4 | 2024 |
| Peytonsville | TENNESSEE | 4 | 2021 |
| Hillsboro | ALABAMA | 3 | 1996 |
| Valhermoso Spg 2 | ALABAMA | 3 | 2014 |
| Triana | ALABAMA | 3 | 2012 |
| Russell | ARKANSAS | 3 | 2021 |
| Bremen | ILLINOIS | 3 | 2024 |
| York | ILLINOIS | 3 | 2024 |
| Corydon | INDIANA | 3 | 2024 |
| Plum | KENTUCKY | 3 | 2023 |
| East Union | KENTUCKY | 3 | 2017 |
| Mincy | MISSOURI | 3 | 2024 |
| Campbellsville | TENNESSEE | 3 | 2017 |
| Indian Mound 2 | TENNESSEE | 3 | 2013 |
| Swaim | ALABAMA | 2 | 2014 |
| Wheeler Dam | ALABAMA | 2 | 2022 |
| Zion | ARKANSAS | 2 | 2022 |
| Fulton | ARKANSAS | 2 | 2018 |
| Pulaski | ILLINOIS | 2 | 2022 |
| Royalton | ILLINOIS | 2 | 2013 |
| Pimento | INDIANA | 2 | 2023 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.