BirdAnalyst
Guild · West Virginia · BBS 2025 Release · 1966–2024

Forest Birds In West Virginia

All statesWest Virginia

55 species in this guild. As a group they are -11%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 West Virginia. See the full index history below.

Forest Birds In West Virginia Population Forecast

If the recent trend holds, Forest birds in West Virginia is projected to stay roughly flat through 2029, near 4.5 (95% range 3.6–5.3). A 5-year backtest shows a typical error of ±5%, with 100% of held-out values landing inside the 95% band.

-5%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 →
4.5Projected 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 →
3.6–5.395% 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 →
±5%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 West Virginia is projected to stay roughly flat through 2029, near 4.5 (95% range 3.6–5.3). A 5-year backtest shows a typical error of ±5%, 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 →
20254.53.65.3
20264.53.65.3
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20294.53.65.3

Member Species In West Virginia

Forest birds species in West Virginia.
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 →
Golden-winged WarblerParulidae-96%
Prairie WarblerParulidae-95%
Bewick's WrenTroglodytidae-81%
Kentucky WarblerParulidae-80%
Warbling VireoVireonidae-78%
Pine WarblerParulidae-65%
Prothonotary WarblerParulidae-63%
Common YellowthroatParulidae-61%
Yellow WarblerParulidae-60%
White-eyed VireoVireonidae-53%
Blue-gray GnatcatcherPolioptilidae-47%
Worm-eating WarblerParulidae-38%
Cerulean WarblerParulidae-29%
Blue-winged WarblerParulidae-25%
Wood ThrushTurdidae-21%
Downy WoodpeckerPicidae-18%
Eastern BluebirdTurdidae-13%
American RobinTurdidae-5%
Northern House WrenTroglodytidae+2%
Carolina ChickadeeParidae+16%
Black-and-white WarblerParulidae+40%
Red-eyed VireoVireonidae+43%
Northern ParulaParulidae+52%
Louisiana WaterthrushParulidae+57%
Hairy WoodpeckerPicidae+61%
Swainson's ThrushTurdidae+61%
Pileated WoodpeckerPicidae+62%
Tufted TitmouseParidae+70%
Yellow-throated VireoVireonidae+74%
White-breasted NuthatchSittidae+100%
Red-headed WoodpeckerPicidae+104%
Northern WaterthrushParulidae+149%
Hooded WarblerParulidae+152%
OvenbirdParulidae+171%
American RedstartParulidae+181%
Black-capped ChickadeeParidae+225%
Mourning WarblerParulidae+229%
Carolina WrenTroglodytidae+296%
Swainson's WarblerParulidae+301%
Red-bellied WoodpeckerPicidae+304%
Winter WrenTroglodytidae+345%
Golden-crowned KingletRegulidae+363%
Chestnut-sided WarblerParulidae+365%
Black-throated Green WarblerParulidae+381%
Brown CreeperCerthiidae+754%
Red-breasted NuthatchSittidae+800%
Magnolia WarblerParulidae+815%
Yellow-bellied SapsuckerPicidae11×
VeeryTurdidae11×
Canada WarblerParulidae12×
Blackburnian WarblerParulidae14×
Black-throated Blue WarblerParulidae15×
Hermit ThrushTurdidae20×
Yellow-throated WarblerParulidae20×
Blue-headed VireoVireonidae23×

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