Species · Mississippi · BBS 2025 Release · 1966–2024
Purple Martin Population Trend in Mississippi
Purple Martin in Mississippi has fallen sharply: down 55% on the route-weighted index since 1968.
-55%Since 1968
69Routes In State
58Years
Notable Purple Martin Trends in Mississippi
long arc declinecomputed index
Purple Martin has fallen sharply in Mississippi: down 55% on the route-weighted index since 1968.
Purple Martin Population Forecast in Mississippi
If the recent trend holds, Purple Martin in Mississippi is projected to rise about 156% by 2029 — from 3.2 in 2024 to a central estimate of 8.1 (95% range 0.00–18). A 5-year backtest shows a typical error of ±153.1%, with 100% of held-out values landing inside the 95% band.
+156%Change by 2029
8.1Projected 2029 index
0.00–1895% range
±153.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 8.6 | 0.00 | 19 |
| 2026 | 8.5 | 0.00 | 19 |
| 2027 | 8.4 | 0.00 | 18 |
| 2028 | 8.2 | 0.00 | 18 |
| 2029 | 8.1 | 0.00 | 18 |
Purple Martin Survey Routes in Mississippi
| Okatibbee L. | 304 | 2008 | 1995 |
| Mt Carmel | 44 | 2016 | 1974 |
| Latimer 2 | 34 | 2023 | 2021 |
| Cybur | 32 | 2019 | 1966 |
| Fontainbleau | 31 | 1978 | 1966 |
| Lucien | 27 | 2008 | 1967 |
| Olive Branch 2 | 27 | 2022 | 2017 |
| Macon | 24 | 2024 | 1966 |
| Columbia | 22 | 2018 | 1969 |
| Poplarville | 19 | 1978 | 1972 |
| Benndale | 19 | 2023 | 1974 |
| Scooba | 16 | 1982 | 1967 |
| Tchula 3 | 15 | 2021 | 1995 |
| Olive Branch | 14 | 2001 | 1969 |
| Diberville | 13 | 1987 | 1979 |
| Fayette | 12 | 2013 | 1966 |
| Cockrum | 12 | 2024 | 1967 |
| Waynesboro | 12 | 2010 | 1966 |
| Isola | 10 | 2022 | 1968 |
| Necaise | 9 | 2022 | 1982 |
| Amite River | 8 | 2012 | 2008 |
| Lake | 7 | 2024 | 1966 |
| Neely | 7 | 2012 | 1974 |
| Trace Madison | 7 | 2016 | 2015 |
| Lake Mary | 6 | 1989 | 1974 |
Purple Martin Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.