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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 Chillar

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: 223774
  Adult

Chillar
Buenos Aires
Argentina
10/12/2017
Victoria Herrera
Foto
Photography ID: 184398
  Adult

Chillar
Buenos Aires
Argentina
01/08/2017
Hugo Cristobal Ayala
Foto
Photography ID: 151887
  Adult

Chillar
Buenos Aires
Argentina
03/07/2016
Victoria Herrera
Foto
Photography ID: 125057
  Adult

Chillar
Buenos Aires
Argentina
11/11/2015
Victoria Herrera
Foto
Photography ID: 37471
  Juvenile

Chillar
Buenos Aires
Argentina
11/24/2013
Victoria Herrera
Foto
Photography ID: 36503
  Juvenile

Chillar
Buenos Aires
Argentina
11/23/2013
Victoria Herrera



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
226742729/03/202509:22ArgentinaBuenos AiresAvenida Profesor R. C. de Paula 795, Chillar1Santiago Juan Torres
204330010/06/2024ArgentinaBuenos AiresChillarVictoria Herrera
176413813/05/2023ArgentinaBuenos AiresChillar16Victoria Herrera
171042521/01/2023ArgentinaBuenos AiresChillar2Victoria Herrera
130021317/10/2020ArgentinaBuenos AiresChillar3Victoria Herrera
124174709/05/2020ArgentinaBuenos AiresPatio, Chillar3Victoria Herrera
94822006/07/2019ArgentinaBuenos AiresChillarGonzalo Diaz
83522309/11/2018ArgentinaBuenos AiresLa Concepción, Chillar4Victoria Herrera
62985512/10/2017ArgentinaBuenos AiresChillarVictoria Herrera
52471208/01/2017ArgentinaBuenos AiresPlanta Urbana, ChillarHugo Cristobal Ayala
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 23/03/2026.