Species · Louisiana · BBS 2025 Release · 1966–2024
Northern Mockingbird Population Trend in Louisiana
Northern Mockingbird in Louisiana has declined: down 37% on the route-weighted index since 1969.
-37%Since 1969
100Routes In State
57Years
Notable Northern Mockingbird Trends in Louisiana
No notable trend signals for Northern Mockingbird in Louisiana. See the full index history below.
Northern Mockingbird Population Forecast in Louisiana
If the recent trend holds, Northern Mockingbird in Louisiana is projected to stay roughly flat through 2029, near 26 (95% range 19–33). A 5-year backtest shows a typical error of ±22%, with 80% of held-out values landing inside the 95% band.
-6%Change by 2029
26Projected 2029 index
19–3395% range
±22%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 27 | 20 | 34 |
| 2026 | 27 | 20 | 34 |
| 2027 | 27 | 19 | 34 |
| 2028 | 26 | 19 | 34 |
| 2029 | 26 | 19 | 33 |
Northern Mockingbird Survey Routes in Louisiana
| Mamou | 119 | 1982 | 1967 |
| Keystone | 114 | 2013 | 1967 |
| Carlisle | 91 | 1988 | 1968 |
| Hackberry 2 | 78 | 2024 | 2018 |
| Hackberry | 68 | 2016 | 1967 |
| River Road | 68 | 2024 | 1987 |
| Cypress | 66 | 1987 | 1967 |
| Brousville | 65 | 2024 | 1998 |
| Lafitte | 61 | 1991 | 1967 |
| Fort Polk | 54 | 1975 | 1967 |
| Ville Platte | 54 | 2019 | 1988 |
| Esther | 51 | 2024 | 1988 |
| Maurice | 50 | 2024 | 1988 |
| Fillmore | 48 | 1989 | 1968 |
| Mayflower | 46 | 2024 | 1967 |
| Derry | 46 | 1989 | 1967 |
| Many | 46 | 1992 | 1989 |
| Rayville | 45 | 2008 | 1967 |
| Gonzales | 45 | 2019 | 1998 |
| Rayville 2 | 44 | 2024 | 2009 |
| Concord | 44 | 2019 | 2006 |
| Baton Rouge | 42 | 2024 | 1995 |
| Roseland | 40 | 2024 | 1967 |
| Gibson | 40 | 2019 | 1999 |
| Ltl Chenier 2 | 38 | 2011 | 2010 |
Northern Mockingbird Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.