BirdAnalyst
Species · Louisiana · BBS 2026 Release · 1966–2025

European Starling Population Trend in Louisiana

All statesGeneralists

European Starling in Louisiana has edged down: down 13% on the route-weighted index since 1969.

-13%Since 1969TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
98Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable European Starling Trends in LouisianaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for European Starling in Louisiana. See the full index history below.

European Starling Population Forecast in Louisiana

If the recent trend holds, European Starling in Louisiana is projected to rise about 57% by 2030 — from 12 in 2025 to a central estimate of 19 (95% range 5.1–33). A 5-year backtest shows a typical error of ±87.6%, with 100% of held-out values landing inside the 95% band.

+57%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
19Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
5.1–3395% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±87.6%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, European Starling in Louisiana is projected to rise about 57% by 2030 — from 12 in 2025 to a central estimate of 19 (95% range 5.1–33). A 5-year backtest shows a typical error of ±87.6%, with 100% of held-out values landing inside the 95% band.19672030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2026195.133
2027195.133
2028195.133
2029195.133
2030195.133

European Starling Survey Routes in Louisiana

Routes recording European Starling in Louisiana.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Carlisle26619881968
Grand Isle21020192010
Junior10919911987
Lafitte10219911967
Brousville9320251998
Larose8819921988
Mamou6919821967
Morgan City6519861967
Natchitoches5819911987
Creole4819871967
Belair4120251991
Berwick3920181987
River Road3220251987
Baton Rouge3220251995
Hackberry3120161968
Keystone3020131967
Bickham2920251972
Kraemer2820251997
Forked Island 22820112010
Shaw2720241967
Esther2620251988
Haughton2520251991
Mayflower2320251967
Goodwill2320252004
Cypress2219871967

European Starling Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.