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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 Reserva Natural Laguna Guatraché

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





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 294890
  Adult

Guatraché
La Pampa
Argentina
10/06/2018
Santiago Luis Vargas
Foto
Photography ID: 121899
 
Guatraché
La Pampa
Argentina
10/23/2015
Lucas Nikolaus
Foto
Photography ID: 116278
 
Guatraché
La Pampa
Argentina
09/25/2015
Lucas Nikolaus
Foto
Photography ID: 113425
  Adult

Guatraché
La Pampa
Argentina
09/06/2015
Marcelo Fabio Dolsan
Foto
Photography ID: 113353
  Adult

Guatraché
La Pampa
Argentina
09/06/2015
Andres Espindola
Foto
Photography ID: 113160
  Adult

Guatraché
La Pampa
Argentina
09/05/2015
Diego Hernán Pérez
Foto
Photography ID: 113159
  Adult

Guatraché
La Pampa
Argentina
09/05/2015
Diego Hernán Pérez



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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
124840024/02/2020ArgentinaLa PampaReserva Natural Laguna Guatraché, Guatraché3Fernando Alberto Segura
85816506/10/2018ArgentinaLa PampaReserva Natural Laguna Guatraché, Guatraché1Gonzalo Camiletti
82815106/10/2018ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéSantiago Luis Vargas
35298523/10/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéLucas Nikolaus
33551425/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéLucas Nikolaus
32635006/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéMarcelo Fabio Dolsan
32623306/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéAndres Espindola
32643805/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéMarcelo Fabio Dolsan
32603005/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéDiego Hernán Pérez
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 27/09/2026.