BirdAnalyst
Guild · South Carolina · BBS 2025 Release · 1966–2024

Forest Birds In South Carolina

All statesSouth Carolina

35 species in this guild. As a group they are +16%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 2029, near 5.2 (95% range 3.9–6.5). A 5-year backtest shows a typical error of ±8.9%, with 100% of held-out values landing inside the 95% band.

+8%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 →
5.2Projected 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 →
3.9–6.595% 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 →
±8.9%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 2029, near 5.2 (95% range 3.9–6.5). A 5-year backtest shows a typical error of ±8.9%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20255.23.96.5
20265.23.96.5
20275.23.96.5
20285.23.96.5
20295.23.96.5

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-95%
Hairy WoodpeckerPicidae-85%
Wood ThrushTurdidae-82%
Common YellowthroatParulidae-72%
Worm-eating WarblerParulidae-47%
Prairie WarblerParulidae-45%
Prothonotary WarblerParulidae-39%
Louisiana WaterthrushParulidae-35%
Northern ParulaParulidae-33%
Hooded WarblerParulidae-14%
American RobinTurdidae-11%
American RedstartParulidae-9%
Red-bellied WoodpeckerPicidae+2%
Red-eyed VireoVireonidae+7%
Carolina WrenTroglodytidae+8%
Red-headed WoodpeckerPicidae+21%
Brown-headed NuthatchSittidae+26%
Downy WoodpeckerPicidae+35%
Pileated WoodpeckerPicidae+48%
Carolina ChickadeeParidae+53%
Northern House WrenTroglodytidae+61%
Kentucky WarblerParulidae+62%
Swainson's WarblerParulidae+91%
Red-cockaded WoodpeckerPicidae+92%
Eastern BluebirdTurdidae+105%
White-eyed VireoVireonidae+143%
Yellow-throated WarblerParulidae+176%
Yellow-throated VireoVireonidae+208%
Tufted TitmouseParidae+273%
Blue-gray GnatcatcherPolioptilidae+297%
OvenbirdParulidae+351%
White-breasted NuthatchSittidae+353%
Pine WarblerParulidae+353%
Blue-headed VireoVireonidae+428%
Black-and-white WarblerParulidae+661%

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