BirdAnalyst
Guild · West Virginia · BBS 2026 Release · 1966–2025

Forest Birds In West Virginia

All statesWest Virginia

77 species in this guild. As a group they are -22%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 2030, near 5.3 (95% range 4.2–6.3). A 5-year backtest shows a typical error of ±3.8%, with 100% of held-out values landing inside the 95% band.

+2%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 →
5.3Projected 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 →
4.2–6.395% 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 →
±3.8%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 2030, near 5.3 (95% range 4.2–6.3). A 5-year backtest shows a typical error of ±3.8%, 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 →
20265.34.36.3
20275.34.36.3
20285.34.36.3
20295.34.36.3
20305.34.26.3

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-94%
Yellow-breasted ChatIcteriidae-94%
Summer TanagerCardinalidae-92%
Black-billed CuckooCuculidae-90%
Kentucky WarblerParulidae-85%
Bewick's WrenTroglodytidae-81%
Warbling VireoVireonidae-76%
Prothonotary WarblerParulidae-69%
Purple FinchFringillidae-67%
Common YellowthroatParulidae-57%
Yellow WarblerParulidae-55%
Yellow-billed CuckooCuculidae-54%
White-eyed VireoVireonidae-52%
Brown ThrasherMimidae-49%
Field SparrowPasserellidae-49%
Indigo BuntingCardinalidae-48%
Cerulean WarblerParulidae-48%
Pine WarblerParulidae-47%
Baltimore OrioleIcteridae-46%
American GoldfinchFringillidae-41%
Chipping SparrowPasserellidae-41%
Blue-gray GnatcatcherPolioptilidae-41%
Worm-eating WarblerParulidae-35%
Wood ThrushTurdidae-23%
Eastern BluebirdTurdidae-19%
Blue-winged WarblerParulidae-19%
Downy WoodpeckerPicidae-14%
American RobinTurdidae-5%
Northern CardinalCardinalidae-2%
Northern House WrenTroglodytidae+3%
Gray CatbirdMimidae+3%
Eastern TowheePasserellidae+4%
Song SparrowPasserellidae+4%
Blue GrosbeakCardinalidae+12%
Ruby-throated HummingbirdTrochilidae+17%
Carolina ChickadeeParidae+20%
Orchard OrioleIcteridae+34%
Hairy WoodpeckerPicidae+35%
Red-eyed VireoVireonidae+47%
Northern ParulaParulidae+47%
Scarlet TanagerCardinalidae+49%
Pileated WoodpeckerPicidae+52%
Louisiana WaterthrushParulidae+57%
Black-and-white WarblerParulidae+63%
Yellow-throated VireoVireonidae+65%
Tufted TitmouseParidae+70%
White-breasted NuthatchSittidae+78%
Swainson's ThrushTurdidae+83%
Northern WaterthrushParulidae+159%
Red-headed WoodpeckerPicidae+170%
OvenbirdParulidae+179%
Hooded WarblerParulidae+183%
American RedstartParulidae+198%
Cedar WaxwingBombycillidae+219%
Carolina WrenTroglodytidae+226%
Blue JayCorvidae+227%
Mourning WarblerParulidae+275%
Black-capped ChickadeeParidae+288%
Red-bellied WoodpeckerPicidae+306%
Swainson's WarblerParulidae+310%
Winter WrenTroglodytidae+320%
Golden-crowned KingletRegulidae+341%
Chestnut-sided WarblerParulidae+454%
Rose-breasted GrosbeakCardinalidae+479%
Black-throated Green WarblerParulidae+492%
Red-breasted NuthatchSittidae+895%
Magnolia WarblerParulidae+945%
Brown CreeperCerthiidae+988%
VeeryTurdidae12×
Canada WarblerParulidae13×
Yellow-bellied SapsuckerPicidae13×
Blackburnian WarblerParulidae15×
Black-throated Blue WarblerParulidae17×
Yellow-throated WarblerParulidae20×
Hermit ThrushTurdidae21×
Blue-headed VireoVireonidae22×

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