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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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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: 587054
  Adult

Chillar
Buenos Aires
Argentina
06/10/2024
Victoria Herrera
Foto
Photography ID: 572145
  Adult

Azul
Buenos Aires
Argentina
01/13/2024
Victoria Herrera
Foto
Photography ID: 223774
  Adult

Chillar
Buenos Aires
Argentina
10/12/2017
Victoria Herrera
Foto
Photography ID: 154796
  Adult

Benito Juárez
Buenos Aires
Argentina
05/25/2016
Victoria Herrera
Foto
Photography ID: 151887
  Adult

Chillar
Buenos Aires
Argentina
03/07/2016
Victoria Herrera
Foto
Photography ID: 145946
  Adult

Guatraché
La Pampa
Argentina
03/25/2016
Victoria Herrera
Foto
Photography ID: 125057
  Adult

Chillar
Buenos Aires
Argentina
11/11/2015
Victoria Herrera
Foto
Photography ID: 66070
  Adult

Carhué
Buenos Aires
Argentina
10/12/2014
Victoria Herrera
Foto
Photography ID: 65737
  Adult

Azul
Buenos Aires
Argentina
09/19/2014
Victoria Herrera
Foto
Photography ID: 65727
  Adult

Tapalqué
Buenos Aires
Argentina
09/26/2014
Victoria Herrera
Foto
Photography ID: 65623
  Adult

Olavarría
Buenos Aires
Argentina
09/21/2014
Victoria Herrera
Foto
Photography ID: 37471
  Juvenile

Chillar
Buenos Aires
Argentina
11/24/2013
Victoria Herrera



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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
220247530/11/2024ArgentinaBuenos AiresChacras, Azul2Victoria Herrera
216526705/10/2024ArgentinaBuenos AiresChacras, Azul2Victoria Herrera
204330010/06/2024ArgentinaBuenos AiresChillarVictoria Herrera
197839827/01/2024ArgentinaBuenos AiresChacras, Azul3Victoria Herrera
197835013/01/2024ArgentinaBuenos AiresChacras, Azul4Victoria Herrera
176413813/05/2023ArgentinaBuenos AiresChillar16Victoria Herrera
176345220/04/2023ArgentinaLa PampaLaguna Guatraché, Guatraché20Victoria Herrera
171042521/01/2023ArgentinaBuenos AiresChillar2Victoria Herrera
168046925/11/2022ArgentinaBuenos AiresCamping Municipal La Chacra, CarhuéVictoria Herrera
168042823/11/2022ArgentinaBuenos AiresPlaza Tte. Gral. Levalle, CarhuéVictoria Herrera
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 29/03/2026.