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

Snowy Egret Population Trend in Alabama

All statesWetland birds

Snowy Egret in Alabama has edged down: down 18% on the route-weighted index since 1969.

-18%Since 1969TrendPercent 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 →
29Routes 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 →
53YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Snowy Egret Trends in AlabamaNotable 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 Snowy Egret in Alabama. See the full index history below.

Snowy Egret Population Forecast in Alabama

If the recent trend holds, Snowy Egret in Alabama is projected to fall about 45% by 2029 — from 0.26 in 2024 to a central estimate of 0.14 (95% range 0.00–0.88). A 5-year backtest shows a typical error of ±75.9%, with 100% of held-out values landing inside the 95% band.

-45%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 →
0.14Projected 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 →
0.00–0.8895% 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 →
±75.9%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, Snowy Egret in Alabama is projected to fall about 45% by 2029 — from 0.26 in 2024 to a central estimate of 0.14 (95% range 0.00–0.88). A 5-year backtest shows a typical error of ±75.9%, with 100% of held-out values landing inside the 95% band.19672029
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 →
20250.160.000.90
20260.160.000.90
20270.150.000.89
20280.150.000.89
20290.140.000.88

Snowy Egret Survey Routes in Alabama

Routes recording Snowy Egret in Alabama.
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 →
Alabama Pt 22420052004
Elberta1720222001
Alabama Pt1620021999
Grangeburg1520241982
Wheeler Dam520232011
Madrid420001999
Dauphin Is319901967
Foley319721972
Eufaula319991996
Dauphin Is 2220191991
Greensboro220051985
Epes220082000
Fairview220151992
St. Elmo220142013
Bay Minette220152015
Dauphin Is 3220212021
Gainestown Ferry220151999
Pine Grove119991999
Greensport120022002
Harrell119991969
Cottonton119811981
Mclellan119861986
Beatrice120072007
Latham119761968
Millry120182018

Snowy Egret Population Trend in Other States

arizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianakansaslouisianamainemarylandmassachusettsmississippimissourinebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonrhode-islandsouth-carolinasouth-dakotatennesseetexasutahvirginiawisconsinwyoming

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