BirdAnalyst
Species · Georgia · BBS 2026 Release · 1966–2025

Summer Tanager Population Trend in Georgia

All statesForest birds

Summer Tanager in Georgia has edged down: down 10% on the route-weighted index since 1968.

-10%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 →
109Routes 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 Summer Tanager 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 Summer Tanager in Georgia. See the full index history below.

Summer Tanager Population Forecast in Georgia

If the recent trend holds, Summer Tanager in Georgia is projected to fall about 16% by 2030 — from 6.8 in 2025 to a central estimate of 5.8 (95% range 3.7–7.8). A 5-year backtest shows a typical error of ±19.6%, with 100% of held-out values landing inside the 95% band.

-16%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 →
5.8Projected 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 →
3.7–7.895% 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 →
±19.6%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, Summer Tanager in Georgia is projected to fall about 16% by 2030 — from 6.8 in 2025 to a central estimate of 5.8 (95% range 3.7–7.8). A 5-year backtest shows a typical error of ±19.6%, 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 →
20265.73.77.7
20275.73.77.7
20285.73.77.7
20295.73.77.8
20305.83.77.8

Summer Tanager Survey Routes in Georgia

Routes recording Summer Tanager 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 →
Deepstep3320231975
Lincolnton 22720252018
Piedmont Nwr2720031991
Whitesburg2620251992
Roland2420252005
Crest1820251973
Rentz1720251977
Tazewell1620251967
Dover1620251976
Hawkinsville1520241966
White Hill1520252005
Baxley1420191966
Macon1420251975
Rutledge1420251975
Woodbine1420242011
Wrightsville1320251966
Wadley1220251977
Keller1219941975
Carrs Station1220252008
Fowlstown1120161967
Shannon1120191975
Weber1120252007
Philema1120252010
Irwinton1120252016
Maxeys1020241966

Summer Tanager Population Trend in Other States

alabamaarizonaarkansascaliforniadelawarefloridaillinoisindianaiowakansaskentuckylouisianamarylandmississippimissourinebraskanevadanew-jerseynew-mexiconorth-carolinaohiooklahomapennsylvaniasouth-carolinatennesseetexasutahvirginiawest-virginiawisconsin

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