BirdAnalyst
Guild · South Carolina · BBS 2026 Release · 1966–2025

Forest Birds In South Carolina

All statesSouth Carolina

55 species in this guild. As a group they are -19%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 1968.

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 South Carolina. See the full index history below.

Forest Birds In South Carolina Population Forecast

If the recent trend holds, Forest birds in South Carolina is projected to stay roughly flat through 2030, near 5.8 (95% range 4.3–7.3). A 5-year backtest shows a typical error of ±8.2%, with 100% 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 →
5.8Projected 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 →
4.3–7.395% 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 →
±8.2%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 South Carolina is projected to stay roughly flat through 2030, near 5.8 (95% range 4.3–7.3). A 5-year backtest shows a typical error of ±8.2%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20265.94.47.4
20275.94.47.4
20285.94.47.4
20295.84.47.3
20305.84.37.3

Member Species In South Carolina

Forest birds species in South Carolina.
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 →
Marsh WrenTroglodytidae-92%
Hairy WoodpeckerPicidae-90%
Field SparrowPasserellidae-89%
Wood ThrushTurdidae-79%
Gray CatbirdMimidae-75%
Common YellowthroatParulidae-74%
Ruby-throated HummingbirdTrochilidae-67%
Orchard OrioleIcteridae-62%
Eastern TowheePasserellidae-57%
Brown ThrasherMimidae-47%
Worm-eating WarblerParulidae-47%
Bachman's SparrowPasserellidae-43%
Indigo BuntingCardinalidae-41%
Blue JayCorvidae-40%
Yellow-breasted ChatIcteriidae-40%
Prairie WarblerParulidae-37%
Louisiana WaterthrushParulidae-33%
Prothonotary WarblerParulidae-33%
Northern ParulaParulidae-32%
Yellow-billed CuckooCuculidae-22%
Northern CardinalCardinalidae-18%
Hooded WarblerParulidae-17%
Painted BuntingCardinalidae-15%
Northern House WrenTroglodytidae-13%
American RedstartParulidae-9%
Blue GrosbeakCardinalidae-7%
Summer TanagerCardinalidae-3%
Song SparrowPasserellidae-3%
American RobinTurdidae-1%
Red-bellied WoodpeckerPicidae-1%
Carolina WrenTroglodytidae+14%
Red-eyed VireoVireonidae+17%
Red-headed WoodpeckerPicidae+19%
Brown-headed NuthatchSittidae+24%
Downy WoodpeckerPicidae+36%
Pileated WoodpeckerPicidae+48%
Kentucky WarblerParulidae+52%
Carolina ChickadeeParidae+53%
Chipping SparrowPasserellidae+63%
Eastern BluebirdTurdidae+70%
Red-cockaded WoodpeckerPicidae+98%
Cedar WaxwingBombycillidae+98%
Yellow-throated WarblerParulidae+121%
White-eyed VireoVireonidae+145%
Swainson's WarblerParulidae+187%
Scarlet TanagerCardinalidae+209%
Pine WarblerParulidae+304%
Yellow-throated VireoVireonidae+311%
White-breasted NuthatchSittidae+314%
Tufted TitmouseParidae+315%
Blue-gray GnatcatcherPolioptilidae+334%
OvenbirdParulidae+388%
Blue-headed VireoVireonidae+404%
Black-and-white WarblerParulidae+685%
American GoldfinchFringillidae23×

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