Species · BCR 26 · BBS 2025 Release · 1966–2024
Common Nighthawk In Mississippi Alluvial Valley
Common Nighthawk in Mississippi Alluvial Valley has edged up: up 13% on the route-weighted index since 1969.
+13%Since 1969
44Routes In Region
57Years
Notable Signals
No notable trend signals for Common Nighthawk in Mississippi Alluvial Valley. See the full index history below.
Forecast
If the recent trend holds, Common Nighthawk in Mississippi Alluvial Valley is projected to fall about 59% by 2029 — from 1.3 in 2024 to a central estimate of 0.53 (95% range 0.10–0.96). A 5-year backtest shows a typical error of ±32.9%, with 80% of held-out values landing inside the 95% band.
-59%Change by 2029
0.53Projected 2029 index
0.10–0.9695% range
±32.9%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.53 | 0.09 | 0.96 |
| 2026 | 0.53 | 0.09 | 0.96 |
| 2027 | 0.53 | 0.09 | 0.96 |
| 2028 | 0.53 | 0.10 | 0.96 |
| 2029 | 0.53 | 0.10 | 0.96 |
Routes In Mississippi Alluvial Valley
| Dell | ARKANSAS | 18 | 2024 |
| Kennett | MISSOURI | 12 | 2024 |
| Hayti | MISSOURI | 10 | 2021 |
| Berwick | LOUISIANA | 5 | 2018 |
| Whitton | ARKANSAS | 4 | 1985 |
| Blodgett | MISSOURI | 4 | 2024 |
| Wilson | ARKANSAS | 3 | 2024 |
| Deventer | MISSOURI | 3 | 2024 |
| South Bend | ARKANSAS | 2 | 2006 |
| Harrisburg | ARKANSAS | 2 | 1988 |
| Saffell | ARKANSAS | 2 | 2003 |
| Maynard | ARKANSAS | 2 | 1994 |
| Carlisle | LOUISIANA | 2 | 1987 |
| Floyd | LOUISIANA | 2 | 1997 |
| River Road | LOUISIANA | 2 | 2021 |
| Baton Rouge | LOUISIANA | 2 | 2024 |
| Eudora | ARKANSAS | 1 | 1973 |
| Hughes | ARKANSAS | 1 | 1990 |
| West Tyler | ARKANSAS | 1 | 1982 |
| Augusta | ARKANSAS | 1 | 1992 |
| England | ARKANSAS | 1 | 2011 |
| Ulm | ARKANSAS | 1 | 1986 |
| Freetown | LOUISIANA | 1 | 1989 |
| Morgan City | LOUISIANA | 1 | 1986 |
| Roseland | LOUISIANA | 1 | 1974 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.