Species · BCR 27 · BBS 2025 Release · 1966–2024
Purple Gallinule In Southeastern Coastal Plain
Purple Gallinule in Southeastern Coastal Plain has collapsed: down 94% on the route-weighted index since 1970.
-94%Since 1970
15Routes In Region
31Years
Notable Signals
long arc declinecomputed index
Purple Gallinule has collapsed in Southeastern Coastal Plain: down 94% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Purple Gallinule in Southeastern Coastal Plain is projected to stay roughly flat through 2026, near 0.00 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±384.2%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2026
0.00Projected 2026 index
0.00–0.0895% range
±384.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2022 | 0.00 | 0.00 | 0.08 |
| 2023 | 0.00 | 0.00 | 0.08 |
| 2024 | 0.00 | 0.00 | 0.08 |
| 2025 | 0.00 | 0.00 | 0.08 |
| 2026 | 0.00 | 0.00 | 0.08 |
Routes In Southeastern Coastal Plain
| Darien | GEORGIA | 17 | 1967 |
| Fairview | ALABAMA | 2 | 1997 |
| Lovedale | FLORIDA | 2 | 2011 |
| St Vincent I | FLORIDA | 2 | 2018 |
| Dauphin Is | ALABAMA | 1 | 1988 |
| Alabama Pt | ALABAMA | 1 | 1991 |
| Madrid | ALABAMA | 1 | 2004 |
| Dauphin Is 2 | ALABAMA | 1 | 2000 |
| Chacaloochee Bay | ALABAMA | 1 | 2019 |
| Oak Grove | FLORIDA | 1 | 2007 |
| Broad Branch | FLORIDA | 1 | 1981 |
| Miccosukee | FLORIDA | 1 | 1973 |
| Covington | FLORIDA | 1 | 1977 |
| Steinhatchee | FLORIDA | 1 | 1975 |
| Pinetta | FLORIDA | 1 | 2021 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.