BirdAnalyst
Guild · Louisiana · BBS 2025 Release · 1966–2024

Generalists In Louisiana

All statesLouisiana

57 species in this guild. As a group they are -33%Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → since 1969.

Guild SignalsNotable 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 generalists in Louisiana. See the full index history below.

Generalists In Louisiana Population Forecast

If the recent trend holds, Generalists in Louisiana is projected to fall about 19% by 2029 — from 7.9 in 2024 to a central estimate of 6.4 (95% range 4.6–8.2). A 5-year backtest shows a typical error of ±8.4%, with 100% of held-out values landing inside the 95% band.

-19%Change by 2029TrendPercent 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 →
6.4Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
4.6–8.295% 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 →
±8.4%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, Generalists in Louisiana is projected to fall about 19% by 2029 — from 7.9 in 2024 to a central estimate of 6.4 (95% range 4.6–8.2). A 5-year backtest shows a typical error of ±8.4%, with 100% of held-out values landing inside the 95% band.19672029
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 →
20256.85.08.6
20266.74.98.5
20276.64.88.4
20286.54.78.3
20296.44.68.2

Member Species In Louisiana

Generalists species in Louisiana.
TrendPercent 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 →
Bachman's SparrowPasserellidae-95%
Field SparrowPasserellidae-91%
Great-tailed GrackleIcteridae-90%
House SparrowPasseridae-86%
Common Ground DoveColumbidae-86%
Common GrackleIcteridae-84%
Loggerhead ShrikeLaniidae-82%
Rock PigeonColumbidae-78%
Baltimore OrioleIcteridae-66%
Eastern Screech-OwlStrigidae-51%
Orchard OrioleIcteridae-46%
Northern MockingbirdMimidae-37%
Wild TurkeyPhasianidae-36%
Bronzed CowbirdIcteridae-35%
Red-winged BlackbirdIcteridae-31%
Swallow-tailed KiteAccipitridae-30%
Belted KingfisherAlcedinidae-28%
Wood StorkCiconiidae-25%
Cooper's HawkAccipitridae-21%
European StarlingSturnidae-19%
American KestrelFalconidae-18%
Bald EagleAccipitridae-10%
Painted BuntingCardinalidae-8%
Yellow-billed CuckooCuculidae+4%
Blue JayCorvidae+20%
Ruby-throated HummingbirdTrochilidae+22%
Great Horned OwlStrigidae+24%
Chipping SparrowPasserellidae+24%
Brown-headed CowbirdIcteridae+30%
Brown ThrasherMimidae+33%
Summer TanagerCardinalidae+33%
Northern CardinalCardinalidae+34%
Eastern TowheePasserellidae+36%
Swainson's HawkAccipitridae+37%
Boat-tailed GrackleIcteridae+58%
Mourning DoveColumbidae+84%
Gray CatbirdMimidae+84%
American CrowCorvidae+86%
Yellow-breasted ChatIcteriidae+93%
House FinchFringillidae+95%
OspreyPandionidae+106%
Fish CrowCorvidae+114%
Barred OwlStrigidae+122%
Indigo BuntingCardinalidae+149%
AnhingaAnhingidae+160%
Turkey VultureCathartidae+181%
Blue GrosbeakCardinalidae+290%
Red-shouldered HawkAccipitridae+326%
Broad-winged HawkAccipitridae+374%
Black VultureCathartidae+394%
Eurasian Collared-DoveColumbidae+488%
Crested CaracaraFalconidae+492%
Red-tailed HawkAccipitridae+678%
Mississippi KiteAccipitridae+700%
White-winged DoveColumbidae+792%
Inca DoveColumbidae+847%
Seaside SparrowPasserellidae19×

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.