BirdAnalyst
Species · BCR 29 · BBS 2025 Release · 1966–2024

Great Egret In Piedmont

All regionsPiedmontWetland birds

Great Egret in Piedmont has edged up: up 20% on the route-weighted index since 1978.

+20%Since 1978TrendPercent 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 →
41Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
34YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Great Egret in Piedmont. See the full index history below.

Great Egret In Piedmont Population Forecast

If the recent trend holds, Great Egret in Piedmont is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±65.3%, with 60% of held-out values landing inside the 95% band.

n/aChange 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 →
0.03Projected 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 →
0.00–0.0795% 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 →
±65.3%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, Great Egret in Piedmont is projected to stay roughly flat through 2029, near 0.03 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±65.3%, with 60% of held-out values landing inside the 95% band.19712029
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 →
20250.030.000.07
20260.030.000.07
20270.030.000.07
20280.030.000.07
20290.030.000.07

Routes In Piedmont

Routes recording Great Egret in Piedmont.
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 →
Barton CreekSOUTH-CAROLINA42017
FinchleyVIRGINIA42021
AthensGEORGIA31979
Hollonville 2GEORGIA32019
WacoNORTH-CAROLINA31991
FairplayGEORGIA21990
SiloamGEORGIA21987
Stoney Point 2GEORGIA22018
SaxapahawNORTH-CAROLINA22011
SheffieldNORTH-CAROLINA21996
WhitmireSOUTH-CAROLINA22024
Taylorstown 2VIRGINIA22023
Nixburg 2ALABAMA12014
ForsythGEORGIA11998
CrestGEORGIA12023
LincolntonGEORGIA12011
MaxeysGEORGIA12021
HollonvilleGEORGIA11994
GrovetownGEORGIA11999
StockbridgeGEORGIA12017
RutledgeGEORGIA12006
JulietteGEORGIA12023
WashingtonGEORGIA12021
MetasvilleGEORGIA11997
OlneyMARYLAND12023

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