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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





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Foto
Photography ID: 33951
  Adult

Miramar
Buenos Aires
Argentina
01/12/2014
Santiago Juan Torres
Foto
Photography ID: 26041
  Adult

Tandil
Buenos Aires
Argentina
08/31/2013
Santiago Juan Torres



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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
252776014/09/202610:42ArgentinaBuenos AiresRuta sin nombrar, Balcarce2Santiago Juan Torres
251928730/08/2026ArgentinaBuenos AiresEstación Iraola, TandilSantiago Juan Torres
250039226/07/202616:51ArgentinaBuenos AiresAvutarda 116, Cariló2Santiago Juan Torres
249953222/07/202615:10ArgentinaSanta FeRuta Nacional 1782Santiago Juan Torres
248967605/07/202611:56ArgentinaBuenos AiresRuta sin nombrar1Santiago Juan Torres
248965405/07/202611:08ArgentinaBuenos AiresRuta sin nombrar1Santiago Juan Torres
247740830/05/2026ArgentinaBuenos AiresGruta de Oro, Benito Juárez2Santiago Juan Torres
247265921/05/202615:41ArgentinaBuenos AiresRuta Provincial 301Santiago Juan Torres
247240920/05/202615:58ArgentinaBuenos AiresRuta sin nombrar1Santiago Juan Torres
247101517/05/202610:33ArgentinaBuenos Aires12 de Octubre 1210, Tandil1Santiago Juan Torres
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 23/09/2026.