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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 Partido de Villarino

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: 584364
  Adult

Partido de Villarino
Buenos Aires
Argentina
05/07/2024
Susana Gomez
Foto
Photography ID: 584347
  Adult

Partido de Villarino
Buenos Aires
Argentina
05/05/2024
Susana Gomez
Foto
Photography ID: 459982
  Adult

Partido de Villarino
Buenos Aires
Argentina
08/27/2021
Susana Gomez
Foto
Photography ID: 421190
  Adult

Partido de Villarino
Buenos Aires
Argentina
11/22/2020
Susana Gomez
Foto
Photography ID: 410636
  Adult

Partido de Villarino
Buenos Aires
Argentina
09/01/2020
Susana Gomez
Foto
Photography ID: 403999
  Adult

Partido de Villarino
Buenos Aires
Argentina
05/01/2020
Rosemary Scoffield
Foto
Photography ID: 327356
  Adult

Partido de Villarino
Buenos Aires
Argentina
04/10/2019
Susana Gomez
Foto
Photography ID: 313465
  Adult

Partido de Villarino
Buenos Aires
Argentina
01/28/2019
Susana Gomez
Foto
Photography ID: 201364
  Adult

Partido de Villarino
Buenos Aires
Argentina
04/28/2017
Susana Gomez
Foto
Photography ID: 156144
  Adult

Partido de Villarino
Buenos Aires
Argentina
07/01/2016
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
244252605/03/2026ArgentinaBuenos AiresMarahué, Partido de VillarinoRosemary Scoffield
246203608/02/2026ArgentinaBuenos AiresQuebrada del Indio, Partido de Villarino3Enrique Chiurla
241620503/01/2026ArgentinaBuenos AiresPeñi Mapu, Partido de VillarinoFrancisco Encinosa
241136503/01/2026ArgentinaBuenos AiresPeñi Mapu, Partido de VillarinoSusana Gomez
214119527/08/2024ArgentinaBuenos AiresPeñi Mapu, Partido de Villarino4Susana Gomez
203504107/05/2024ArgentinaBuenos AiresPeñi Mapu, Partido de VillarinoSusana Gomez
203501805/05/2024ArgentinaBuenos AiresPeñi Mapu, Partido de VillarinoSusana Gomez
189130630/09/2023ArgentinaBuenos AiresEl Puesto, Partido de Villarino3Susana Gomez
189125330/09/2023ArgentinaBuenos AiresPeñi Mapu, Partido de Villarino2Susana Gomez
189135929/09/2023ArgentinaBuenos AiresEl Puesto, Partido de Villarino3Susana Gomez
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 22/09/2026.