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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 Mar de Ajó

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: 316787
  Adult

Mar de Ajó
Buenos Aires
Argentina
01/31/2019
Diego Trillo
Foto
Photography ID: 245749
  Adult

Mar de Ajó
Buenos Aires
Argentina
01/23/2018
Diego Trillo
Foto
Photography ID: 199455
  Adult

Mar de Ajó
Buenos Aires
Argentina
04/15/2017
Diego Trillo
Foto
Photography ID: 199454
  Adult

Mar de Ajó
Buenos Aires
Argentina
04/14/2017
Diego Trillo
Foto
Photography ID: 190474
  Adult

Mar de Ajó
Buenos Aires
Argentina
01/30/2017
Diego Trillo
Foto
Photography ID: 190473
  Immature

Mar de Ajó
Buenos Aires
Argentina
01/30/2017
Diego Trillo
Foto
Photography ID: 190183
  Adult

Mar de Ajó
Buenos Aires
Argentina
01/22/2017
Diego Trillo
Foto
Photography ID: 145113
  Adult

Mar de Ajó
Buenos Aires
Argentina
03/24/2016
Diego Trillo
Foto
Photography ID: 138854
  Adult

Mar de Ajó
Buenos Aires
Argentina
01/28/2016
Diego Trillo
Foto
Photography ID: 131298
  Adult

Mar de Ajó
Buenos Aires
Argentina
12/20/2015
José Luis Ianiro
Foto
Photography ID: 91112
  Juvenile

Mar de Ajó
Buenos Aires
Argentina
03/22/2015
Diego Trillo



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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
145820220/08/2021ArgentinaBuenos AiresMar de AjóClaudio Mendez
88614831/01/2019ArgentinaBuenos AiresPista de ciclismo Parque Gral. Lavalle, Mar de AjóDiego Trillo
69454223/01/2018ArgentinaBuenos AiresMédanos de la costa, Mar de AjóDiego Trillo
56668415/04/2017ArgentinaBuenos AiresMédanos de la costa, Mar de AjóDiego Trillo
56668314/04/2017ArgentinaBuenos AiresMédanos de la costa, Mar de AjóDiego Trillo
54264130/01/2017ArgentinaBuenos AiresMédanos de la costa, Mar de AjóDiego Trillo
54213322/01/2017ArgentinaBuenos AiresMédanos de la costa, Mar de AjóDiego Trillo
42105024/03/2016ArgentinaBuenos AiresTerreno baldío, Mar de AjóDiego Trillo
40492928/01/2016ArgentinaBuenos AiresMédanos de la costa, Mar de AjóDiego Trillo
37947321/12/2015ArgentinaBuenos AiresMar de Ajó4José Luis Ianiro
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 22/03/2026.