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

Forest Birds In Louisiana

All statesLouisiana

50 species in this guild. As a group they are +81%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 forest birds in Louisiana. See the full index history below.

Forest Birds In Louisiana Population Forecast

If the recent trend holds, Forest birds in Louisiana is projected to stay roughly flat through 2030, near 7.2 (95% range 5.9–8.4). A 5-year backtest shows a typical error of ±14.6%, with 20% of held-out values landing inside the 95% band.

-8%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 →
7.2Projected 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 →
5.9–8.495% 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 →
±14.6%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, Forest birds in Louisiana is projected to stay roughly flat through 2030, near 7.2 (95% range 5.9–8.4). A 5-year backtest shows a typical error of ±14.6%, with 20% 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 →
20267.05.88.2
20277.15.88.3
20287.15.98.3
20297.15.98.3
20307.25.98.4

Member Species In Louisiana

Forest birds 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%
Red-cockaded WoodpeckerPicidae-75%
Baltimore OrioleIcteridae-71%
Brown-headed NuthatchSittidae-64%
Red-headed WoodpeckerPicidae-62%
Warbling VireoVireonidae-48%
Orchard OrioleIcteridae-42%
Marsh WrenTroglodytidae-42%
Louisiana WaterthrushParulidae-35%
Northern ParulaParulidae-22%
Painted BuntingCardinalidae-6%
Kentucky WarblerParulidae-3%
Common YellowthroatParulidae+3%
Hairy WoodpeckerPicidae+6%
Wood ThrushTurdidae+7%
White-breasted NuthatchSittidae+9%
Chipping SparrowPasserellidae+10%
Blue JayCorvidae+15%
Yellow-billed CuckooCuculidae+18%
Ruby-throated HummingbirdTrochilidae+23%
Eastern TowheePasserellidae+24%
American RedstartParulidae+24%
Brown ThrasherMimidae+27%
Summer TanagerCardinalidae+37%
Northern CardinalCardinalidae+37%
Black-and-white WarblerParulidae+40%
Pine WarblerParulidae+74%
Gray CatbirdMimidae+86%
Yellow-breasted ChatIcteriidae+109%
Yellow-throated WarblerParulidae+118%
American RobinTurdidae+127%
Carolina ChickadeeParidae+131%
Eastern BluebirdTurdidae+138%
Tufted TitmouseParidae+140%
Indigo BuntingCardinalidae+159%
Carolina WrenTroglodytidae+183%
White-eyed VireoVireonidae+189%
Pileated WoodpeckerPicidae+189%
Prothonotary WarblerParulidae+223%
Prairie WarblerParulidae+244%
Red-bellied WoodpeckerPicidae+291%
Blue-gray GnatcatcherPolioptilidae+313%
Worm-eating WarblerParulidae+315%
Downy WoodpeckerPicidae+381%
Blue GrosbeakCardinalidae+383%
Yellow-throated VireoVireonidae+389%
Red-eyed VireoVireonidae+452%
Swainson's WarblerParulidae+520%
Hooded WarblerParulidae+646%

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