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Species · Georgia · BBS 2026 Release · 1966–2025

Carolina Wren Population Trend in Georgia

All statesForest birds

Carolina Wren in Georgia has surged: up 127% on the route-weighted index since 1968.

+127%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 →
111Routes 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 Carolina Wren 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 increasecomputed 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 →

Carolina Wren has surged in Georgia: up 127% on the route-weighted index since 1968.

Carolina Wren Population Forecast in Georgia

If the recent trend holds, Carolina Wren in Georgia is projected to rise about 14% by 2030 — from 33 in 2025 to a central estimate of 38 (95% range 33–44). A 5-year backtest shows a typical error of ±4.6%, with 100% of held-out values landing inside the 95% band.

+14%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 →
38Projected 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 →
33–4495% 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 →
±4.6%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, Carolina Wren in Georgia is projected to rise about 14% by 2030 — from 33 in 2025 to a central estimate of 38 (95% range 33–44). A 5-year backtest shows a typical error of ±4.6%, 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 →
2026373142
2027373143
2028373243
2029383243
2030383344

Carolina Wren Survey Routes in Georgia

Routes recording Carolina Wren 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 →
Headlight8720252011
Sunny Side8620192006
Woodbine8320242011
Tarver7820251991
Doles7220221975
Council6420252012
Needmore5819831977
Baxley5720191966
Candler5620252009
Cotton5320251972
Tazewell5120251967
Maxeys4920241966
Stockbridge4920251975
Workmore4920251978
Grovetown4820211975
Colonels Island4820232005
Henderson4620251973
Shannon4620191975
Boston4520251975
Fowlstown4320161967
Everett City4320191976
Athens4320251966
Philema4320252010
Kite Lake4320252015
Fitzgerald4220251966

Carolina Wren Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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