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Chalk-browed Mockingbird

Mimus saturninus
(Lichtenstein, MHC, 1823)
Calandria Grande
Sabiá-do-campo

Family: Mimidae
Order: Passeriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from San Antonio de Areco

Conservation status according to BirdLife International: Least Concern

Description: A medium-sized and slender mockingbird with an upright posture and a clean, elongated profile. Its plumage is mostly grayish to brownish, with subtle streaking on the breast and flanks and paler underparts. The wings show a contrasting pattern of dark and light patches, especially noticeable in flight. It has a slightly curved, fine bill suitable for probing insects and fruit. The yellowish eyes give it a sharp, alert expression. Juveniles display a duller and less contrasted appearance.

Geographical distribution: It occurs widely across South America, from central and eastern Brazil through Paraguay, Bolivia, Uruguay, and much of Argentina, occupying open and semi-open landscapes. It thrives in dry regions, savannas, pampas and even suburban environments.

Habitat: Inhabits open grasslands, scrublands, forest edges, rural environments and urban areas, where it adapts readily. It is frequently observed in gardens, parks and areas with scattered shrubs, often using exposed branches, posts or human-made structures as vantage points.

Diet: Its diet is omnivorous and opportunistic, including insects, small invertebrates, fleshy fruits, seeds and occasionally human-related food items. It forages mainly on the ground, walking with confident steps and pausing to inspect leaf litter or cavities for prey.

Behavior: A highly territorial species, especially during the breeding season. Its song is strong, varied and persistent, often including imitations of other birds. It tends to be bold and active, regularly perching on elevated lookouts. In human-modified areas it may form small family groups and defend resources vigorously.

Breeding: Builds an open and bulky nest of twigs and plant fibers in shrubs, medium-height trees or artificial structures. The clutch typically contains 2 to 4 eggs. The female performs most of the incubation, while both adults defend the territory and feed the chicks until independence.

Conservation status: Classified as Least Concern (LC) globally, supported by its broad range, adaptability and stable populations. It thrives in altered landscapes and often expands into human-modified areas.


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




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Last published photographs

Foto
Photography ID: 376459
  Adult

San Antonio de Areco
Buenos Aires
Argentina
01/22/2020
Silvia Sokolovsky
Foto
Photography ID: 326303
  Adult

San Antonio de Areco
Buenos Aires
Argentina
03/05/2019
Guillermo C Olivero
Foto
Photography ID: 299289
  Adult

San Antonio de Areco
Buenos Aires
Argentina
09/02/2018
Hernán Bertagni
Foto
Photography ID: 159640
  Adult

San Antonio de Areco
Buenos Aires
Argentina
06/29/2016
Diego Trillo



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 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
231542006/07/2025ArgentinaBuenos AiresRio Areco, San Antonio de ArecoJoaquin Casari
228847017/04/2025ArgentinaBuenos AiresSan Antonio de Areco, San Antonio de ArecoGerardo Lloret
218226002/11/2024ArgentinaBuenos AiresNogueira 29, San Antonio de Areco1Santiago Juan Torres
117511022/01/2020ArgentinaBuenos AiresCostas del río Areco, San Antonio de ArecoSilvia Sokolovsky
123036118/01/2020ArgentinaBuenos AiresVilla Lía, San Antonio de Areco3Diego Dominici
90672403/04/2019ArgentinaBuenos AiresSan Antonio de ArecoDiego Oscar
90645405/03/2019ArgentinaBuenos AiresBolívar y Segundo Sombra, San Antonio de ArecoGuillermo C Olivero
84007502/09/2018ArgentinaBuenos AiresLas Dueñas de Areco, San Antonio de ArecoHernán Bertagni
70301118/02/2018ArgentinaBuenos AiresSan Antonio de ArecoNicolas Olejnik
45853429/06/2016ArgentinaBuenos AiresSan Antonio de ArecoDiego Trillo
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 18/03/2026.