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Species · Georgia · BBS 2025 Release · 1966–2024

Pine Warbler Population Trend in Georgia

All statesForest birds

Pine Warbler in Georgia has surged: up 408% on the route-weighted index since 1968.

+408%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 →
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 Pine Warbler 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 →

Pine Warbler has surged in Georgia: up 408% on the route-weighted index since 1968.

Pine Warbler Population Forecast in Georgia

If the recent trend holds, Pine Warbler in Georgia is projected to rise about 27% by 2029 — from 12 in 2024 to a central estimate of 15 (95% range 12–19). A 5-year backtest shows a typical error of ±10.7%, with 100% of held-out values landing inside the 95% band.

+27%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 →
15Projected 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 →
12–1995% 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 →
±10.7%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, Pine Warbler in Georgia is projected to rise about 27% by 2029 — from 12 in 2024 to a central estimate of 15 (95% range 12–19). A 5-year backtest shows a typical error of ±10.7%, 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 →
2025151118
2026151119
2027151119
2028151119
2029151219

Pine Warbler Survey Routes in Georgia

Routes recording Pine Warbler 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 →
Piedmont Nwr5220031991
Deepstep4620231975
Weber4120242006
Fairplay3619911966
Carrs Station3620242008
Curry Hill3520192006
Whitesburg3120241992
Sharon2820222018
Philema2720242010
Rentz2620241977
Lincolnton2520171970
Kite Lake2520232015
Grovetown2420211975
Juliette2420241975
Maxeys2320241966
Courthouse2220241966
Macon2220241975
Stockbridge2220231975
Riceboro2220231995
Stoney Point2120072007
Union2020232011
Ousley2020242015
Shiloh2020242012
Yates Crossroads2020242005
Rutledge1920241975

Pine Warbler Population Trend in Other States

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

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