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Species · Georgia · BBS 2026 Release · 1966–2025

Wood Thrush Population Trend in Georgia

All statesForest birds

Wood Thrush in Georgia has fallen sharply: down 67% on the route-weighted index since 1968.

-67%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 →
106Routes In StateSurvey 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 Wood Thrush Trends in GeorgiaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Wood Thrush has fallen sharply in Georgia: down 67% on the route-weighted index since 1968.

Wood Thrush Population Forecast in Georgia

If the recent trend holds, Wood Thrush in Georgia is projected to fall about 60% by 2030 — from 4.5 in 2025 to a central estimate of 1.8 (95% range 0.00–5.6). A 5-year backtest shows a typical error of ±55%, with 100% of held-out values landing inside the 95% band.

-60%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 →
1.8Projected 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 →
0.00–5.695% 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 →
±55%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 Georgia is projected to fall about 60% by 2030 — from 4.5 in 2025 to a central estimate of 1.8 (95% range 0.00–5.6). A 5-year backtest shows a typical error of ±55%, 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 →
20262.30.006.1
20272.20.006.0
20282.10.005.9
20291.90.005.7
20301.80.005.6

Wood Thrush Survey Routes in Georgia

Routes recording Wood Thrush in Georgia.
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 →
Mountain Cty2220251975
Yates Crossroads1720252005
Sharon 21620252023
Piedmont Nwr1520031991
Stoney Point 21420252013
Carrs Station1320252008
Whitesburg1220251992
Maxeys1120241966
Ball Ground1120252019
Irwinton1120252016
Roland1120252005
Pleasant Hill1120252005
Baxter1020221975
Deepstep1020231975
Bowdon920251973
Tazewell920251967
Macon820251975
Hiram820181975
Juliette820251975
Washington820251975
Sharon820222018
Rock Branch820252005
Crest720251973
Oakman720241966
Rutledge720251978

Wood Thrush Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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