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

Ruby-throated Hummingbird Population Trend in Georgia

All statesGeneralists

Ruby-throated Hummingbird in Georgia has edged down: down 23% on the route-weighted index since 1968.

-23%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 →
102Routes 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 Ruby-throated Hummingbird 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 →

No notable trend signals for Ruby-throated Hummingbird in Georgia. See the full index history below.

Ruby-throated Hummingbird Population Forecast in Georgia

If the recent trend holds, Ruby-throated Hummingbird in Georgia is projected to rise about 55% by 2029 — from 0.44 in 2024 to a central estimate of 0.68 (95% range 0.32–1.0). A 5-year backtest shows a typical error of ±37.4%, with 100% of held-out values landing inside the 95% band.

+55%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 →
0.68Projected 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 →
0.32–1.095% 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 →
±37.4%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, Ruby-throated Hummingbird in Georgia is projected to rise about 55% by 2029 — from 0.44 in 2024 to a central estimate of 0.68 (95% range 0.32–1.0). A 5-year backtest shows a typical error of ±37.4%, 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 →
20250.660.301.0
20260.670.301.0
20270.670.311.0
20280.680.311.0
20290.680.321.0

Ruby-throated Hummingbird Survey Routes in Georgia

Routes recording Ruby-throated Hummingbird 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 →
Deepstep720231975
Doles520171985
Ousley420242017
Jacksonboro320181976
Metasville320001998
Whitesburg320241992
Thornton Road320062006
Fitzgerald220061972
Crest220181975
Oakman220241966
Henderson220241976
Siloam220131967
Linwood220191977
Hiram220181980
Juliette220241977
Workmore220191981
Lincolnton 2220232019
Colonels Island220192005
Millen220192007
Weber220232006
Dickey220172016
Curry Hill220192006
Good Hope220242013
Harrietts Bl120221970
Okefenokee119901975

Ruby-throated Hummingbird Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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