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Snowy Egret

Egretta thula
(Molina, GI, 1782)
Garcita Blanca
Garça-branca-pequena

Family: Ardeidae
Order: Pelecaniformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from San Juan

Conservation status according to BirdLife International: Least Concern

Synonyms: Ardea thula.

Subspecies:


Description: A slender and agile heron, easily recognized by its entirely white plumage, the contrasting black bill, and its bright yellow feet paired with black tarsi. During the breeding season it develops long, delicate ornamental plumes on the head, neck, and back, which sway with its movements and become striking displays during courtship. Its light build and flexible neck allow fluid postures in both foraging and alert behaviors. Juveniles show slightly duller tones and less contrasting legs.

Geographic distribution: It is widely distributed across the Americas, from southern Canada to southern South America, with resident populations in tropical and subtropical regions. In temperate areas it may perform seasonal movements linked to water availability. It occurs in numerous countries and is one of the most frequently observed white herons of the Neotropics.

Habitat: Prefers shallow wetlands, including freshwater and brackish lagoons, marshes, estuaries, mangroves and coastal marshlands. It also makes use of artificial habitats such as irrigation canals, rice fields and urban ponds, provided suitable resources are present. Open or sparsely vegetated areas are favored, as they allow clear visual detection of prey.

Diet: Its diet is based mainly on small fish, supplemented with crustaceans, amphibians, aquatic insects and various invertebrates. It employs a range of active foraging strategies, such as running with wings partially open to flush and concentrate prey, stirring the bottom with its feet to reveal hidden organisms, or making quick dashes to seize fleeing prey. Group foraging is also common, taking advantage of prey movement created by other birds.

Behavior: A generally bold and energetic species, alternating moments of stillness with sudden, rapid movements while searching for food. Vocalizations consist of short, rasping calls used in social interactions or alarm contexts. It may travel in small groups and frequently uses communal roosts, especially in coastal wetlands. Its flight is steady and direct, with regular wingbeats and a retracted neck.

Breeding: Builds simple stick nests, placed in trees, shrubs, or structures within mixed colonies alongside other herons and ibises. The clutch usually contains three to five eggs, incubated by both adults. Chicks grow in densely occupied colonies, and parents divide duties between feeding trips and nest defense. Reproductive success is closely tied to the stability of local wetlands.

Conservation status: Classified as Least Concern, with global populations considered stable, although some regions face pressures from wetland loss, contamination or human disturbance. Its ecological flexibility and tolerance to modified environments contribute to its broad and persistent distribution.


Author of this compilation: EcoRegistros – 08/12/2025




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Last published photographs

Foto
Photography ID: 364471
  Adult

Angualasto
San Juan
Argentina
11/18/2019
Manuel Godoy
Foto
Photography ID: 176967
  Adult

Huaco
San Juan
Argentina
07/13/2015
Miguel A Villarruel
Foto
Photography ID: 53901
  Adult

Encon
San Juan
Argentina
05/24/2014
Silvio Montani



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
218763010/11/2024ArgentinaSan JuanVilla san agustin1Patricia Beatriz Benitez
218750809/11/2024ArgentinaSan JuanLaguna El Desempeño, Rawson15Pablo Moreno
203015704/05/2024ArgentinaSan JuanEmbalse Cuesta del Viento1Santiago Juan Torres
194600813/01/2024ArgentinaSan JuanLaguna El Desempeño, Rawson6Jerónimo Expósito
113762818/11/2019ArgentinaSan JuanRio Jáchal, AngualastoManuel Godoy
90458830/03/2019ArgentinaSan JuanEntrada y alrededores, Parque Provincial Ischigualasto1Dario Juan Wendeler
88039824/01/2019ArgentinaSan JuanParque Presidente SarmientoRomán Montero
87876820/01/2019ArgentinaSan JuanRn 142 y Río San JuanRomán Montero
173480317/07/2016ArgentinaSan JuanDique San Agustín de Valle Fértil, San Agustín de Valle FértilRamon Moller Jensen
50606716/07/2015ArgentinaSan JuanDique San Agustín de Valle Fértil, San Agustín de Valle FértilMiguel A Villarruel
Page 1

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Citation recommended:

EcoRegistros. 2026. Snowy Egret (Egretta thula) - Species sheet. Acceded from https://www.ecoregistros.org on 11/03/2026.