Species · BCR 26 · BBS 2025 Release · 1966–2024
Ruby-throated Hummingbird In Mississippi Alluvial Valley
Ruby-throated Hummingbird in Mississippi Alluvial Valley has declined: down 44% on the route-weighted index since 1968.
-44%Since 1968
66Routes In Region
58Years
Notable Signals
No notable trend signals for Ruby-throated Hummingbird in Mississippi Alluvial Valley. See the full index history below.
Forecast
If the recent trend holds, Ruby-throated Hummingbird in Mississippi Alluvial Valley is projected to rise about 65% by 2029 — from 0.39 in 2024 to a central estimate of 0.65 (95% range 0.04–1.3). A 5-year backtest shows a typical error of ±22.9%, with 100% of held-out values landing inside the 95% band.
+65%Change by 2029
0.65Projected 2029 index
0.04–1.395% range
±22.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.69 | 0.07 | 1.3 |
| 2026 | 0.68 | 0.06 | 1.3 |
| 2027 | 0.67 | 0.06 | 1.3 |
| 2028 | 0.66 | 0.05 | 1.3 |
| 2029 | 0.65 | 0.04 | 1.3 |
Routes In Mississippi Alluvial Valley
| Crowley'S Ridge | ARKANSAS | 6 | 2022 |
| Kraemer | LOUISIANA | 6 | 2023 |
| Dundee | MISSISSIPPI | 6 | 2021 |
| Concord | LOUISIANA | 4 | 2019 |
| Port Allen | LOUISIANA | 4 | 2010 |
| Tchula 2 | MISSISSIPPI | 4 | 1994 |
| Delta N.F. | MISSISSIPPI | 4 | 2016 |
| Augusta | ARKANSAS | 3 | 1997 |
| Keystone | LOUISIANA | 3 | 2006 |
| Tchula | MISSISSIPPI | 3 | 1975 |
| Dahomey Nwr | MISSISSIPPI | 3 | 2023 |
| Harrisburg | ARKANSAS | 2 | 2019 |
| Whitton | ARKANSAS | 2 | 1991 |
| Maynard | ARKANSAS | 2 | 2022 |
| Wilson | ARKANSAS | 2 | 2012 |
| Floyd | LOUISIANA | 2 | 2019 |
| Transylvania | LOUISIANA | 2 | 2022 |
| River Road | LOUISIANA | 2 | 2024 |
| Baton Rouge | LOUISIANA | 2 | 2024 |
| Panther Swamp Nwr | MISSISSIPPI | 2 | 2017 |
| Kennett | MISSOURI | 2 | 2024 |
| Tiptonville | TENNESSEE | 2 | 2022 |
| Pawpaw | TENNESSEE | 2 | 2009 |
| Eudora | ARKANSAS | 1 | 2014 |
| Hughes | ARKANSAS | 1 | 2017 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.