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

Northern Cardinal Population Trend in Georgia

All statesGeneralists

Northern Cardinal in Georgia has held roughly steady: up 3% on the route-weighted index since 1968.

+3%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 Northern Cardinal 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 Northern Cardinal in Georgia. See the full index history below.

Northern Cardinal Population Forecast in Georgia

If the recent trend holds, Northern Cardinal in Georgia is projected to stay roughly flat through 2029, near 54 (95% range 40–67). A 5-year backtest shows a typical error of ±7.4%, with 100% of held-out values landing inside the 95% band.

-2%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 →
54Projected 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 →
40–6795% 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 →
±7.4%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, Northern Cardinal in Georgia is projected to stay roughly flat through 2029, near 54 (95% range 40–67). A 5-year backtest shows a typical error of ±7.4%, 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 →
2025533967
2026534067
2027534067
2028534067
2029544067

Northern Cardinal Survey Routes in Georgia

Routes recording Northern Cardinal 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 →
Newton12420241975
Boston11520241975
Stockbridge9720231975
Dickey9720182005
Athens8920241966
Baxley8720191966
Wrightsville8620241966
Rutledge8620241975
Shiloh8620242012
Ousley8320242015
Weber8120242006
Tazewell7920241967
Henderson7720241973
Colonels Island7720232005
Shannon7520191975
Tarver7320241991
Union7220232011
Philema7120242010
Candler7120242009
Everett City6920191976
Cotton6920241972
Whitesburg6920241992
Workmore6820191978
Glenmore6720242013
Kite Lake6720232015

Northern Cardinal Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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