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

House Finch Population Trend in Georgia

All statesGeneralists

House Finch in Georgia has surged: up 14× on the route-weighted index since 1990.

14×Since 1990TrendPercent 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 →
97Routes 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 →
36YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable House Finch 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 →

House Finch has surged in Georgia: up 14× on the route-weighted index since 1990.

House Finch Population Forecast in Georgia

If the recent trend holds, House Finch in Georgia is projected to rise about 16% by 2029 — from 6.5 in 2024 to a central estimate of 7.5 (95% range 5.4–9.6). A 5-year backtest shows a typical error of ±16.8%, with 100% of held-out values landing inside the 95% band.

+16%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 →
7.5Projected 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 →
5.4–9.695% 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 →
±16.8%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, House Finch in Georgia is projected to rise about 16% by 2029 — from 6.5 in 2024 to a central estimate of 7.5 (95% range 5.4–9.6). A 5-year backtest shows a typical error of ±16.8%, with 100% of held-out values landing inside the 95% band.19882029
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 →
20256.94.89.0
20267.15.09.2
20277.25.19.3
20287.45.39.5
20297.55.49.6

House Finch Survey Routes in Georgia

Routes recording House Finch 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 →
Good Hope3920242005
Stockbridge2920231989
Lakeview2720242006
Hiram2620181992
Woodstock2620212006
Union2520232011
Candler2520242009
Maxeys2420241991
Henderson2220242007
Shiloh2020242012
Fitzgerald1920242007
Owensboro1820242010
Rutledge1720241991
Whitesburg1620241992
Davis Crossroads1520212011
Linwood1320231995
Baldwin1220241992
Dickey1220182008
Cartersville1120241992
Workmore1120192013
Irwinton1120242016
Hollonville1020031988
Tazewell1020241991
Newton820241993
Hollonville 2820222019

House Finch Population Trend in Other States

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

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