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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 Ezeiza

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: 372478
  Adult

Ezeiza
Buenos Aires
Argentina
01/01/2020
Maria Victoria Di Stasio
Foto
Photography ID: 370690
  Adult

Ezeiza
Buenos Aires
Argentina
01/01/2020
María Del Carmen Fabeiro
Foto
Photography ID: 237933
  Adult

Ezeiza
Buenos Aires
Argentina
01/04/2018
María Del Carmen Fabeiro



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
242730903/02/202606:58ArgentinaBuenos AiresAvenida Conquista del Desierto 249, EzeizaJorgelina Lopez
235642411/09/202508:28ArgentinaBuenos AiresAutopista Teniente General Pablo Riccheri Km 33,5, EzeizaNicolas Olejnik
213686324/08/2024ArgentinaBuenos AiresAutopista Teniente General Pablo Riccheri, Ezeiza1Jorge La Grotteria
213683624/08/2024ArgentinaBuenos AiresAutopista Teniente General Pablo Riccheri, Ezeiza1María Alejandra Sosa
213679024/08/2024ArgentinaBuenos AiresEzeiza2María Alejandra Sosa
213656524/08/2024ArgentinaBuenos AiresEzeiza2Jorge La Grotteria
201397224/03/2024ArgentinaBuenos AiresAutopista Teniente General Pablo Riccheri, Ezeiza1Jorge La Grotteria
201389324/03/2024ArgentinaBuenos AiresAutopista Teniente General Pablo Riccheri, Ezeiza1María Alejandra Sosa
201166017/03/2024ArgentinaBuenos AiresBosques de Ezeiza, EzeizaAlec Earnshaw
195913428/01/2024ArgentinaBuenos AiresTriunvirato 70, EzeizaSantiago Juan Torres
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.