Species · Louisiana · BBS 2025 Release · 1966–2024
Indigo Bunting Population Trend in Louisiana
Indigo Bunting in Louisiana has surged: up 149% on the route-weighted index since 1969.
+149%Since 1969
94Routes In State
57Years
Notable Indigo Bunting Trends in Louisiana
long arc increasecomputed index
Indigo Bunting has surged in Louisiana: up 149% on the route-weighted index since 1969.
Indigo Bunting Population Forecast in Louisiana
If the recent trend holds, Indigo Bunting in Louisiana is projected to fall about 18% by 2029 — from 19 in 2024 to a central estimate of 15 (95% range 9.7–21). A 5-year backtest shows a typical error of ±21.1%, with 80% of held-out values landing inside the 95% band.
-18%Change by 2029
15Projected 2029 index
9.7–2195% range
±21.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 15 | 9.3 | 20 |
| 2026 | 15 | 9.4 | 20 |
| 2027 | 15 | 9.5 | 21 |
| 2028 | 15 | 9.6 | 21 |
| 2029 | 15 | 9.7 | 21 |
Indigo Bunting Survey Routes in Louisiana
| Tensas Nwr | 60 | 2024 | 1987 |
| Frogmore | 54 | 2024 | 1998 |
| Shaw | 48 | 2024 | 1967 |
| Many | 46 | 1992 | 1989 |
| Mayflower | 44 | 2024 | 1967 |
| Ivan 2 | 43 | 2016 | 2014 |
| Carterville | 40 | 1992 | 1992 |
| Womack | 39 | 2024 | 1999 |
| Hargis | 39 | 2011 | 2005 |
| Transylvania | 35 | 2022 | 1998 |
| Evelyn | 35 | 2024 | 2004 |
| Linville | 34 | 2024 | 1998 |
| Natchez | 33 | 2024 | 1992 |
| Goodwill | 33 | 2024 | 2004 |
| Mount Union | 32 | 2024 | 1998 |
| Clay | 31 | 2024 | 1968 |
| Enterprise | 31 | 2024 | 2006 |
| Marion | 30 | 1996 | 1988 |
| Rayville 2 | 30 | 2024 | 2009 |
| Trout | 29 | 2024 | 1988 |
| Derry 2 | 28 | 2024 | 1990 |
| Ivan | 28 | 2013 | 1998 |
| Fort Jessup | 27 | 2023 | 1998 |
| Flat Creek | 25 | 2024 | 1998 |
| Concord | 25 | 2019 | 2006 |
Indigo Bunting Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.