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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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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: 668333
  Adult

Luján
Buenos Aires
Argentina
01/18/2026
Silvia Sokolovsky
Foto
Photography ID: 648049
  Adult

Luján
Buenos Aires
Argentina
08/16/2025
Silvia Sokolovsky
Foto
Photography ID: 643629
  Adult

Jáuregui, Luján
Buenos Aires
Argentina
07/19/2025
Silvia Sokolovsky
Foto
Photography ID: 626391
  Adult

Luján
Buenos Aires
Argentina
03/15/2025
Silvia Sokolovsky
Foto
Photography ID: 570380
  Adult

Navarro
Buenos Aires
Argentina
02/13/2024
Silvia Sokolovsky
Foto
Photography ID: 565400
  Adult

Navarro
Buenos Aires
Argentina
01/15/2024
Silvia Sokolovsky
Foto
Photography ID: 556274
  Adult

Navarro
Buenos Aires
Argentina
11/18/2023
Silvia Sokolovsky
Foto
Photography ID: 554396
  Adult

Luján
Buenos Aires
Argentina
11/05/2023
Silvia Sokolovsky
Foto
Photography ID: 533530
  Adult

Luján
Buenos Aires
Argentina
05/01/2023
Silvia Sokolovsky
Foto
Photography ID: 507160
  Adult

Navarro
Buenos Aires
Argentina
09/10/2022
Silvia Sokolovsky
Foto
Photography ID: 493482
  Adult

Navarro
Buenos Aires
Argentina
05/14/2022
Silvia Sokolovsky
Foto
Photography ID: 478132
  Adult

Luján
Buenos Aires
Argentina
01/06/2022
Silvia Sokolovsky



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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
241819318/01/2026ArgentinaBuenos AiresRodizio Campo, LujánSilvia Sokolovsky
234285616/08/2025ArgentinaBuenos AiresUniversidad Nacional de Luján, LujánSilvia Sokolovsky
232225719/07/2025ArgentinaBuenos AiresJáuregui, LujánSilvia Sokolovsky
226239915/03/2025ArgentinaBuenos AiresLujánSilvia Sokolovsky
197331013/02/2024ArgentinaBuenos AiresLaguna De Navarro, NavarroSilvia Sokolovsky
194885915/01/2024ArgentinaBuenos AiresLaguna, NavarroSilvia Sokolovsky
191308118/11/2023ArgentinaBuenos AiresLaguna, NavarroSilvia Sokolovsky
190577405/11/2023ArgentinaBuenos AiresVías del tren, LujánSilvia Sokolovsky
175964201/05/2023ArgentinaBuenos AiresVías del tren, LujánSilvia Sokolovsky
163802210/09/2022ArgentinaBuenos AiresLaguna, NavarroSilvia Sokolovsky
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 26/09/2026.