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Mimus saturninus

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 Mar Chiquita

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





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 694058
  Adult

Mar Chiquita
Buenos Aires
Argentina
08/03/2025
José Luis Ianiro
Foto
Photography ID: 645214
  Adult

Mar Chiquita
Buenos Aires
Argentina
03/29/2025
José Luis Ianiro
Foto
Photography ID: 604520
  Adult

Mar Chiquita
Buenos Aires
Argentina
06/16/2024
José Luis Ianiro
Foto
Photography ID: 478623
  Adult

Mar Chiquita
Buenos Aires
Argentina
01/09/2022
Luis Carlos De Volder
Foto
Photography ID: 472579
  Adult

Mar Chiquita
Buenos Aires
Argentina
09/13/2021
José Luis Ianiro
Foto
Photography ID: 232785
  Adult

Mar Chiquita
Buenos Aires
Argentina
12/09/2017
Hernán Tolosa
Foto
Photography ID: 232624
  Adult

Mar Chiquita
Buenos Aires
Argentina
09/18/2016
José Luis Ianiro
Foto
Photography ID: 221057
  Adult

Mar Chiquita
Buenos Aires
Argentina
09/17/2017
Victor Hugo Michelini
Foto
Photography ID: 153653
  Adult

Mar Chiquita
Buenos Aires
Argentina
06/11/2016
Susana Gomez



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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
242821227/01/2026ArgentinaBuenos AiresLaguna Mar Chiquita, Mar Chiquita2Victor Hugo Michelini
249449415/01/2026ArgentinaBuenos AiresMar Chiquita4Pablo Richter
249440614/01/2026ArgentinaBuenos AiresMar Chiquita2Pablo Richter
240811028/12/2025ArgentinaBuenos AiresEstancia Nahuel Ruca, Mar Chiquita1Victor Hugo Michelini
239325523/11/2025ArgentinaBuenos AiresMar Chiquita2Victor Hugo Michelini
238349401/11/2025ArgentinaBuenos AiresMar Chiquita3Victor Hugo Michelini
238008518/10/2025ArgentinaBuenos AiresMar Chiquita2Victor Hugo Michelini
237800604/10/2025ArgentinaBuenos AiresEstancia Nahuel Ruca, Mar Chiquita1Victor Hugo Michelini
249205403/08/2025ArgentinaBuenos AiresCamino ingreso a la Albúfera Laguna Mar Chiquita, Mar ChiquitaJosé Luis Ianiro
232764429/03/2025ArgentinaBuenos AiresMar Chiquita, Mar ChiquitaJosé Luis Ianiro
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) – Species account. Accessed from www.ecoregistros.org on 20/09/2026.