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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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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: 667343
 
Concordia
Entre Ríos
Argentina
12/28/2025
María Alejandra Sosa
Foto
Photography ID: 667342
 
Concordia
Entre Ríos
Argentina
12/28/2025
María Alejandra Sosa
Foto
Photography ID: 616039
 
Concordia
Entre Ríos
Argentina
12/24/2024
María Alejandra Sosa
Foto
Photography ID: 420008
 
Santo Tomé
Corrientes
Argentina
02/17/2019
María Alejandra Sosa
Foto
Photography ID: 185672
  Adult

Concordia
Entre Ríos
Argentina
01/16/2017
María Alejandra Sosa
Foto
Photography ID: 184649
  Adult

Concordia
Entre Ríos
Argentina
01/09/2017
María Alejandra Sosa
Foto
Photography ID: 94721
  Adult

Chascomús
Buenos Aires
Argentina
04/03/2015
María Alejandra Sosa
Foto
Photography ID: 76511
  Adult

Concordia
Entre Ríos
Argentina
01/08/2015
María Alejandra Sosa
Foto
Photography ID: 73222
  Immature

Concordia
Entre Ríos
Argentina
12/25/2014
María Alejandra Sosa
Foto
Photography ID: 36217
  Juvenile

Concordia
Entre Ríos
Argentina
01/27/2014
María Alejandra Sosa



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Last Vocalizations published



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
María Alejandra Sosa05/31/2025ArgentinaBuenos AiresManuel AlbertiN/AN/ANoNo



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Last Filmings published




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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
245000422/03/202615:39ArgentinaEntre RíosRuta Nacional 141María Alejandra Sosa
244911421/03/202610:53ArgentinaBuenos AiresZárate4María Alejandra Sosa
244911321/03/202610:53ArgentinaBuenos AiresZárate1María Alejandra Sosa
244751315/03/2026ArgentinaBuenos AiresIntendencia del Parque Nacional, Parque Nacional Ciervo de los Pantanos1María Alejandra Sosa
244615214/03/202614:03ArgentinaBuenos AiresPortal Escobar - Jumbo, Belén de Escobar1María Alejandra Sosa
244615314/03/202614:04ArgentinaBuenos AiresPortal Escobar - Jumbo, Belén de Escobar3María Alejandra Sosa
244024428/02/202613:23ArgentinaBuenos AiresPortal Escobar - Jumbo, Belén de Escobar1María Alejandra Sosa
243765122/02/202612:20ArgentinaBuenos AiresIntendente O. Larghi 141, Belén de Escobar1María Alejandra Sosa
243761022/02/202610:11ArgentinaBuenos AiresIntendencia del Parque Nacional, Parque Nacional Ciervo de los Pantanos1María Alejandra Sosa
243405716/02/202614:10ArgentinaEntre RíosCeibas2María Alejandra Sosa
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 25/03/2026.