BirdAnalyst
Species · BCR 24 · BBS 2026 Release · 1966–2025

Wood Thrush In Central Hardwoods

All regionsCentral HardwoodsForest birds

Wood Thrush in Central Hardwoods has increased: up 35% on the route-weighted index since 1968.

+35%Since 1968TrendPercent 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 →
159Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable 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 Wood Thrush in Central Hardwoods. See the full index history below.

Wood Thrush In Central Hardwoods Population Forecast

If the recent trend holds, Wood Thrush in Central Hardwoods is projected to fall about 29% by 2030 — from 7.8 in 2025 to a central estimate of 5.6 (95% range 3.5–7.7). A 5-year backtest shows a typical error of ±41.9%, with 0% of held-out values landing inside the 95% band.

-29%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 →
5.6Projected 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 →
3.5–7.795% 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 →
±41.9%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, Wood Thrush in Central Hardwoods is projected to fall about 29% by 2030 — from 7.8 in 2025 to a central estimate of 5.6 (95% range 3.5–7.7). A 5-year backtest shows a typical error of ±41.9%, with 0% 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 →
20265.63.57.7
20275.63.57.7
20285.63.57.7
20295.63.57.7
20305.63.57.7

Routes In Central Hardwoods

Routes recording Wood Thrush in Central Hardwoods.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
BelmontINDIANA502024
HoosierINDIANA332025
RomeOHIO332025
GeorgiaINDIANA302025
Mammoth CaveKENTUCKY292014
Trace CollinwoodTENNESSEE292018
Indian SpgsINDIANA282025
DelwoodILLINOIS262025
BrownsvilleKENTUCKY252024
Mammoth Cave NorthKENTUCKY232013
Pond CreekTENNESSEE202025
CollinwoodTENNESSEE202025
YorkILLINOIS192025
CelestineINDIANA192025
New PhilaINDIANA192025
CascadeMISSOURI192025
PalaceMISSOURI192025
Indian MoundTENNESSEE191998
ComptonARKANSAS182022
Indian Mound 2TENNESSEE182023
SwaimALABAMA172025
CumbackINDIANA172025
WescoMISSOURI172025
SanduskyILLINOIS162023
Clear SpringINDIANA162025

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