BirdAnalyst
Species · Georgia · BBS 2025 Release · 1966–2024

American Goldfinch Population Trend in Georgia

All statesGeneralists

American Goldfinch in Georgia has surged: up 152% on the route-weighted index since 1968.

+152%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 →
81Routes 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 American Goldfinch 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 →

American Goldfinch has surged in Georgia: up 152% on the route-weighted index since 1968.

American Goldfinch Population Forecast in Georgia

If the recent trend holds, American Goldfinch in Georgia is projected to rise about 38% by 2029 — from 2.1 in 2024 to a central estimate of 2.8 (95% range 2.0–3.7). A 5-year backtest shows a typical error of ±28.1%, with 100% of held-out values landing inside the 95% band.

+38%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 →
2.8Projected 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 →
2.0–3.795% 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 →
±28.1%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, American Goldfinch in Georgia is projected to rise about 38% by 2029 — from 2.1 in 2024 to a central estimate of 2.8 (95% range 2.0–3.7). A 5-year backtest shows a typical error of ±28.1%, 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 →
20252.71.93.5
20262.71.93.5
20272.81.93.6
20282.82.03.6
20292.82.03.7

American Goldfinch Survey Routes in Georgia

Routes recording American Goldfinch 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 →
Rutledge1320241975
Good Hope1320242005
Hiram1120181977
Baxter1020221975
Mountain Cty1020241975
Candler1020242009
Cartersville920241977
Amos Mill820222011
Juliette720231976
Lincolnton 2720242018
Hollonville620031980
Baldwin620241967
Holly Sprs619991978
Wadley620241979
Millen620242006
White Hill620222022
Sharon620222018
Stoney Point620072007
Piedmont Nwr620031993
Athens520231966
Stockbridge520231975
Whitesburg520241992
Ball Ground520212019
Woodstock520212006
Stoney Point 2520242013

American Goldfinch Population Trend in Other States

alabamaarkansascaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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