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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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Latest feeding records
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Last published photographs

Foto
Photography ID: 441199
  Adult

Eduardo Castex
La Pampa
Argentina
12/23/2014
Hugo Alberto Valderrey
Foto
Photography ID: 407751
  Adult

Lanús
Buenos Aires
Argentina
11/29/2014
Vicente Piccirillo
Foto
Photography ID: 390590
  Juvenile

Laguna Negra
Chubut
Argentina
12/23/2014
Zulima América Schupbach
Foto
Photography ID: 390589
  Juvenile

Laguna Negra
Chubut
Argentina
12/23/2014
Zulima América Schupbach
Foto
Photography ID: 228048
♂ ♀
  Adult

Trelew
Chubut
Argentina
05/03/2014
Zulima América Schupbach
Foto
Photography ID: 228047
  Adult

Trelew
Chubut
Argentina
04/03/2014
Zulima América Schupbach
Foto
Photography ID: 209740
  Fledgling

La Falda
Córdoba
Argentina
12/10/2014
Walter Bustamante
Foto
Photography ID: 197927
  Adult

Córdoba
Córdoba
Argentina
06/29/2014
Jorge Schlemmer
Foto
Photography ID: 173213
  Adult

Bas San Jose
Mendoza
Argentina
02/08/2014
Miguel A Villarruel
Foto
Photography ID: 163070
 
Ceibas
Entre Ríos
Argentina
11/23/2014
Rodolfo Capdevielle



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Last Vocalizations published



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Gustavo Fernando Durán08/18/2014ArgentinaSanta FeCamino RuralSan Jerónimo NorteIndistinguishableAdultYesNo
Santiago Sainz-trápaga06/19/2014ArgentinaChubutRío ChubutValle Inferior del Río Chubut (VIRCH)IndistinguishableAdultYesNo
Carlos M. Grassini08/31/2014ArgentinaEntre RíosCalle Inmigrantes Percara entre 25 de Mayo y ruta 2ChajaríIndistinguishableAdultYesNo



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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
21649831/12/2014ArgentinaCiudad Autónoma de Buenos AiresLago de RegatasDiego Carus
56186529/12/2014ArgentinaCórdobaLaguna del Plata, La ParaEnzo Rossi
22326329/12/2014ArgentinaBuenos AiresReserva Natural Puerto Mar del PlataPaloma Borghello
122605828/12/2014ArgentinaEntre RíosÁrea Natural Protegida Don SebastiánLuis Prevedel
21572128/12/2014ArgentinaBuenos AiresGobernador UdaondoHernán Tolosa
21533328/12/2014ArgentinaCórdobaVilla Los AromosAndres Espindola
21472128/12/2014ArgentinaBuenos AiresPunta IndioFacundo Quintela
21464628/12/2014ArgentinaBuenos AiresMagdalenaFacundo Quintela
21454028/12/2014ArgentinaEntre RíosParque Nacional El PalmarPablo Meoniz
21423728/12/2014ArgentinaEntre RíosCeibasRodolfo Seró
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.