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Species · Georgia · BBS 2026 Release · 1966–2025

Brown-headed Nuthatch Population Trend in Georgia

All statesForest birds

Brown-headed Nuthatch in Georgia has edged up: up 16% on the route-weighted index since 1968.

+16%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 →
110Routes 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 Brown-headed Nuthatch 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 Brown-headed Nuthatch in Georgia. See the full index history below.

Brown-headed Nuthatch Population Forecast in Georgia

If the recent trend holds, Brown-headed Nuthatch in Georgia is projected to rise about 21% by 2030 — from 2.9 in 2025 to a central estimate of 3.5 (95% range 2.1–4.8). A 5-year backtest shows a typical error of ±19.9%, with 100% of held-out values landing inside the 95% band.

+21%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 →
3.5Projected 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 →
2.1–4.895% 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 →
±19.9%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, Brown-headed Nuthatch in Georgia is projected to rise about 21% by 2030 — from 2.9 in 2025 to a central estimate of 3.5 (95% range 2.1–4.8). A 5-year backtest shows a typical error of ±19.9%, 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 →
20263.52.14.8
20273.52.14.8
20283.52.14.8
20293.52.14.8
20303.52.14.8

Brown-headed Nuthatch Survey Routes in Georgia

Routes recording Brown-headed Nuthatch 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 →
Stoney Point1820072007
Kite Lake1720252015
Hiram1520181975
Weber1220252006
Whitesburg1120251992
Grovetown1020211975
Piedmont Nwr1020031991
Baxley920181967
Deepstep920231975
Hollonville 2920222019
Yates Crossroads920252005
Woodstock920212006
Hollonville820031973
Keller819931975
Union820242011
Philema820252010
Fitzgerald720251969
Lacross720251973
Macon720251975
Ware Co720251986
Carrs Station720252008
Guyton619931966
Bowdon620251974
Dickey620182007
Pleasant Hill620242005

Brown-headed Nuthatch Population Trend in Other States

alabamaarkansasdelawarefloridalouisianamarylandmississippinorth-carolinaoklahomasouth-carolinatennesseetexasvirginia

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