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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 Casilda

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: 503493
  Adult

Casilda
Santa Fe
Argentina
05/31/2022
Evelina Andrea Pakoslavski
Foto
Photography ID: 269556
  Adult

Casilda
Santa Fe
Argentina
06/10/2018
Daniel Paiz
Foto
Photography ID: 193478
  Adult

Casilda
Santa Fe
Argentina
12/15/2013
Claudia Alejandra Nigro



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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
228502107/05/2025ArgentinaSanta FeEscuela Rural, CasildaAdrian Braidotti
212584729/07/2024ArgentinaSanta FeEscuela Rural, CasildaAdrian Braidotti
212571028/07/2024ArgentinaSanta FePuente de Hierro Berreta, Casilda, Santa Fe, Argentina, Casilda6Hugo Caverzasi
205160030/06/2024ArgentinaSanta FeEscuela Rural, CasildaAdrian Braidotti
178350024/06/2023ArgentinaSanta FePuente de Hierro Berreta, Casilda, Santa Fe, Argentina, CasildaAdrian Braidotti
162184031/05/2022ArgentinaSanta FeCasilda3Evelina Andrea Pakoslavski
93467521/06/2019ArgentinaSanta FeCasildaSantiago Luis Iparraguirre
76631810/06/2018ArgentinaSanta FeCasildaDaniel Paiz
52301716/10/2015ArgentinaSanta FeClub de Aeromodelismo de Casilda, Casilda2Sebastián Otero
10773403/02/2014ArgentinaSanta FeCiudad, CasildaDaniel Paiz
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 21/09/2026.