BirdAnalyst
Guild · Ohio · BBS 2025 Release · 1966–2024

Forest Birds In Ohio

All statesOhio

42 species in this guild. As a group they are +83%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 Ohio. See the full index history below.

Forest Birds In Ohio Population Forecast

If the recent trend holds, Forest birds in Ohio is projected to rise about 14% by 2029 — from 5.2 in 2024 to a central estimate of 6.0 (95% range 5.2–6.8). A 5-year backtest shows a typical error of ±7.6%, with 100% of held-out values landing inside the 95% band.

+14%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 →
6.0Projected 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 →
5.2–6.895% 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 →
±7.6%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 Ohio is projected to rise about 14% by 2029 — from 5.2 in 2024 to a central estimate of 6.0 (95% range 5.2–6.8). A 5-year backtest shows a typical error of ±7.6%, 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 →
20255.85.06.7
20265.95.16.7
20275.95.16.7
20286.05.16.8
20296.05.26.8

Member Species In Ohio

Forest birds species in Ohio.
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 →
Bewick's WrenTroglodytidae-66%
Prairie WarblerParulidae-34%
Hermit ThrushTurdidae-23%
Marsh WrenTroglodytidae-19%
Warbling VireoVireonidae-11%
Red-headed WoodpeckerPicidae-8%
Blue-winged WarblerParulidae-1%
Tufted TitmouseParidae+3%
Common YellowthroatParulidae+3%
Cerulean WarblerParulidae+20%
Black-capped ChickadeeParidae+27%
Yellow WarblerParulidae+34%
Eastern BluebirdTurdidae+38%
Blue-headed VireoVireonidae+41%
Brown CreeperCerthiidae+57%
American RobinTurdidae+72%
Chestnut-sided WarblerParulidae+78%
Kentucky WarblerParulidae+96%
Blue-gray GnatcatcherPolioptilidae+101%
VeeryTurdidae+112%
Downy WoodpeckerPicidae+123%
Carolina ChickadeeParidae+125%
Hairy WoodpeckerPicidae+130%
Northern House WrenTroglodytidae+163%
Yellow-throated VireoVireonidae+172%
White-eyed VireoVireonidae+248%
Wood ThrushTurdidae+303%
Red-eyed VireoVireonidae+313%
Red-bellied WoodpeckerPicidae+334%
Carolina WrenTroglodytidae+374%
Pileated WoodpeckerPicidae+422%
Black-throated Green WarblerParulidae+499%
Black-and-white WarblerParulidae+515%
White-breasted NuthatchSittidae+603%
American RedstartParulidae+666%
Pine WarblerParulidae+789%
Louisiana WaterthrushParulidae+941%
Yellow-throated WarblerParulidae15×
OvenbirdParulidae15×
Hooded WarblerParulidae20×
Worm-eating WarblerParulidae21×
Northern ParulaParulidae24×

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