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Species · Texas · BBS 2026 Release · 1966–2025

Snowy Egret Population Trend in Texas

All statesWetland birds

Snowy Egret in Texas has surged: up 131% on the route-weighted index since 1969.

+131%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 →
102Routes 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 →
57YearsYears 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 TexasNotable 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 →

Snowy Egret has surged in Texas: up 131% on the route-weighted index since 1969.

Snowy Egret Population Forecast in Texas

If the recent trend holds, Snowy Egret in Texas is projected to stay roughly flat through 2030, near 1.2 (95% range 0.22–2.1). A 5-year backtest shows a typical error of ±104.5%, with 100% of held-out values landing inside the 95% band.

-5%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 →
1.2Projected 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 →
0.22–2.195% 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 →
±104.5%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 Texas is projected to stay roughly flat through 2030, near 1.2 (95% range 0.22–2.1). A 5-year backtest shows a typical error of ±104.5%, with 100% of held-out values landing inside the 95% band.19672030
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 →
20261.10.172.1
20271.10.182.1
20281.20.192.1
20291.20.212.1
20301.20.222.1

Snowy Egret Survey Routes in Texas

Routes recording Snowy Egret in Texas.
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 →
Stowell10020251968
Quitman Canyon 25020212010
Lag Atascosa2020251969
Presidio2020212021
Henrietta1920221994
Oyster Lake1520251995
L. Atascosa Nwr1520251998
San Ygnacio1219821978
Katy1020251969
Peach Creek1019851979
San Pedro1020162010
Loyola Beach 21020242010
Chandler920041996
Chinquapin920251995
Claytonville919961996
Indianola720241967
Graford720252013
Dougherty720241997
Bayside 2620041997
Winnie520251967
Goliad Prairie520162013
Kingsville420041976
Selden420072007
Weinert419931989
Quitman Cyn.420091999

Snowy Egret Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianakansaskentuckylouisianamainemarylandmassachusettsmississippimissourinebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonrhode-islandsouth-carolinasouth-dakotatennesseeutahvirginiawisconsinwyoming

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