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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 Rosario

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: 643590
  Adult

Rosario
Santa Fe
Argentina
07/19/2025
Joaquín Perosino
Foto
Photography ID: 555453
  Adult

Rosario
Santa Fe
Argentina
10/21/2023
Maria Virginia Cañete
Foto
Photography ID: 505574
  Adult

Rosario
Santa Fe
Argentina
08/28/2022
Maria Virginia Cañete
Foto
Photography ID: 410530
  Adult

Rosario
Santa Fe
Argentina
08/11/2020
Andrés Cecconi
Foto
Photography ID: 401228
 
Rosario
Santa Fe
Argentina
06/16/2020
Lotfi Si Saber
Foto
Photography ID: 400837
 
Rosario
Santa Fe
Argentina
06/14/2020
Lotfi Si Saber
Foto
Photography ID: 399631
  Adult

Rosario
Santa Fe
Argentina
08/26/2017
Eduardo Battaglini
Foto
Photography ID: 299261
  Adult

Rosario
Santa Fe
Argentina
11/19/2018
Andrés Cecconi
Foto
Photography ID: 267759
  Adult

Rosario
Santa Fe
Argentina
06/02/2018
Andrés Cecconi



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
232208019/07/2025ArgentinaSanta FeBosque de los Constituyentes, Rosario1Joaquín Perosino
190908721/10/2023ArgentinaSanta FeBosque de los Constituyentes, RosarioMaria Virginia Cañete
211808921/07/2023ArgentinaSanta FeRosario23Gisela Ballent
179580421/07/2023ArgentinaSanta FeRosario23Santiago Juan Torres
163208628/08/2022ArgentinaSanta FeBosque de los Constituyentes, RosarioMaria Virginia Cañete
146911529/09/2021ArgentinaSanta FeRosarioLeonardo Caballero
146792126/09/2021ArgentinaSanta FeBosque de los Constituyentes, RosarioLeonardo Caballero
128645211/08/2020ArgentinaSanta FeAcuario Río Paraná, RosarioAndrés Cecconi
126438120/06/2020ArgentinaSanta FeBosque de los Constituyentes, RosarioLotfi Si Saber
126429519/06/2020ArgentinaSanta FeParque de la Independencia, Rosario1Lotfi Si Saber
Page 1

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Citation recommended:

EcoRegistros. 2026. Snowy Egret (Egretta thula) - Species sheet. Acceded from https://www.ecoregistros.org on 10/03/2026.