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Species · Georgia · BBS 2025 Release · 1966–2024

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 →
58YearsYears 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 59% by 2029 — from 4.4 in 2024 to a central estimate of 1.8 (95% range 0.00–5.6). A 5-year backtest shows a typical error of ±50.5%, with 100% of held-out values landing inside the 95% band.

-59%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 →
1.8Projected 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 →
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 →
±50.5%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, Wood Thrush in Georgia is projected to fall about 59% by 2029 — from 4.4 in 2024 to a central estimate of 1.8 (95% range 0.00–5.6). A 5-year backtest shows a typical error of ±50.5%, 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 →
20252.30.006.1
20262.20.005.9
20272.00.005.8
20281.90.005.7
20291.80.005.6

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 →
Yates Crossroads2520242005
Rutledge1620241978
Lincolnton 21620242018
Piedmont Nwr1520031991
Irwinton1320242016
Carrs Station1320242008
Juliette1220241975
Sharon 21220242023
Maxeys1120241966
Lacross1120211973
Stoney Point 21120242013
Baxter1020221975
Mountain Cty1020241975
Deepstep1020231975
Rentz1020241977
Roland1020242005
Whitesburg920241992
Pleasant Hill920242005
Hiram820181975
Ball Ground820212019
Sharon820222018
Courthouse720241966
Oakman720241966
Cartersville720241966
Bowdon720241973

Wood Thrush Population Trend in Other States

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

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