Species · Mississippi · BBS 2025 Release · 1966–2024
Anhinga Population Trend in Mississippi
Anhinga in Mississippi has surged: up 13× on the route-weighted index since 1973.
13×Since 1973
20Routes In State
35Years
Notable Anhinga Trends in Mississippi
long arc increasecomputed index
Anhinga has surged in Mississippi: up 13× on the route-weighted index since 1973.
Anhinga Population Forecast in Mississippi
If the recent trend holds, Anhinga in Mississippi is projected to rise about 14% by 2029 — from 0.47 in 2024 to a central estimate of 0.54 (95% range 0.01–1.1). A 5-year backtest shows a typical error of ±79.1%, with 60% of held-out values landing inside the 95% band.
+14%Change by 2029
0.54Projected 2029 index
0.01–1.195% range
±79.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.50 | 0.00 | 1.0 |
| 2026 | 0.51 | 0.00 | 1.0 |
| 2027 | 0.52 | 0.00 | 1.0 |
| 2028 | 0.53 | 0.01 | 1.1 |
| 2029 | 0.54 | 0.01 | 1.1 |
Anhinga Survey Routes in Mississippi
| Fort Adams | 6 | 1997 | 1991 |
| Tchula 2 | 6 | 1994 | 1994 |
| Eagle Lake | 5 | 2024 | 2012 |
| Star | 4 | 2021 | 2021 |
| Tchula 3 | 4 | 2024 | 1995 |
| Dundee | 2 | 2010 | 2010 |
| Delta N.F. | 2 | 2016 | 2015 |
| Benndale | 2 | 2012 | 1999 |
| Beverly | 1 | 2008 | 1969 |
| Benton | 1 | 2023 | 2007 |
| Isola | 1 | 2022 | 2021 |
| Tippo | 1 | 2023 | 2007 |
| Tallahatchie | 1 | 2019 | 2019 |
| Columbia | 1 | 2003 | 1978 |
| Cybur | 1 | 2013 | 2001 |
| Corinth | 1 | 2023 | 2023 |
| Macon | 1 | 2021 | 2021 |
| Waynesboro | 1 | 2009 | 2009 |
| Trace South | 1 | 2007 | 2007 |
| Moon | 1 | 2014 | 2011 |
Anhinga Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.