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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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Records from La Plata

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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Species photographs

Last published photographs

Foto
Photography ID: 703866
 
La Plata
Buenos Aires
Argentina
09/06/2026
Gabriel Gorrín Armas
Foto
Photography ID: 701858
  Adult

La Plata
Buenos Aires
Argentina
08/26/2026
Gabriel Gorrín Armas
Foto
Photography ID: 701561
  Adult

La Plata
Buenos Aires
Argentina
08/21/2026
Gabriel Gorrín Armas
Foto
Photography ID: 697843
  Adult

La Plata
Buenos Aires
Argentina
07/23/2026
Gabriel Gorrín Armas
Foto
Photography ID: 693355
  Adult

La Plata
Buenos Aires
Argentina
06/09/2026
Gabriel Gorrín Armas
Foto
Photography ID: 682588
  Adult

La Plata
Buenos Aires
Argentina
04/14/2026
Gabriel Gorrín Armas
Foto
Photography ID: 666396
 
La Plata
Buenos Aires
Argentina
12/26/2023
Gabriel Gorrín Armas
Foto
Photography ID: 666395
 
La Plata
Buenos Aires
Argentina
01/05/2024
Gabriel Gorrín Armas
Foto
Photography ID: 191260
  Adult

La Plata
Buenos Aires
Argentina
02/22/2017
Dayán Guillen Giraldo
Foto
Photography ID: 33493
  Adult

La Plata
Buenos Aires
Argentina
01/02/2014
Martín Colombo



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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
252542306/09/2026ArgentinaBuenos AiresBosque de La Plata, La PlataGabriel Gorrín Armas
251684726/08/2026ArgentinaBuenos AiresBosque de La Plata, La PlataGabriel Gorrín Armas
251643721/08/2026ArgentinaBuenos AiresEstacionamiento cerca de la Dirección de Imprenta Unlp, La PlataGabriel Gorrín Armas
250640123/07/2026ArgentinaBuenos AiresLa Plata, La PlataGabriel Gorrín Armas
248912209/06/2026ArgentinaBuenos AiresLa PlataGabriel Gorrín Armas
247711529/05/202611:09ArgentinaBuenos AiresPaseo del Bosque, La Plata1María Alejandra Sosa
245953714/04/2026ArgentinaBuenos AiresLa PlataGabriel Gorrín Armas
244434307/02/2026ArgentinaBuenos AiresPlaza Malvinas Argentinas, La Plata2Julian Uriel Collado
240479427/12/2025ArgentinaBuenos AiresPaseo del Bosque, La Plata1Pablo Richter
238887205/10/2025ArgentinaBuenos AiresVilla Garibaldi--quinta Privada, La Plata2Julian Uriel Collado
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 20/09/2026.