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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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Records from Delta del Paraná

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: 362035
♂ ♀
  Adult

Delta del Paraná
Buenos Aires
Argentina
11/09/2019
Daniel Osvaldo Fernández
Foto
Photography ID: 361069
  Adult

Delta del Paraná
Buenos Aires
Argentina
03/17/2019
Sebastián Otero
Foto
Photography ID: 282824
  Adult

Delta del Paraná
Buenos Aires
Argentina
08/20/2018
Vicente Piccirillo
Foto
Photography ID: 212971
  Adult

Delta del Paraná
Buenos Aires
Argentina
06/29/2013
Vicente Piccirillo
Foto
Photography ID: 156789
  Adult

Delta del Paraná
Buenos Aires
Argentina
07/09/2016
Mauricio Secchi
Foto
Photography ID: 117416
  Adult

Delta del Paraná
Buenos Aires
Argentina
10/03/2015
Virginia Bonifacio
Foto
Photography ID: 50441
  Squab

Delta del Paraná
Buenos Aires
Argentina
10/11/2010
Carlos Villa
Foto
Photography ID: 50440
  Squab

Delta del Paraná
Buenos Aires
Argentina
10/11/2010
Carlos Villa
Foto
Photography ID: 50438
  Squab

Delta del Paraná
Buenos Aires
Argentina
10/11/2010
Carlos Villa



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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
177510304/06/2023ArgentinaBuenos AiresDelta del ParanáEsteban Argerich
163581204/09/2022ArgentinaBuenos AiresCamping Cielo, Delta del Paraná7Sebastián Otero
163573803/09/2022ArgentinaBuenos AiresCamping Cielo, Delta del Paraná10Sebastián Otero
163480303/09/2022ArgentinaBuenos AiresCamping Cielo, Delta del ParanáMauricio Secchi
161517216/07/2022ArgentinaBuenos AiresCamping Cielo, Delta del ParanáMauricio Secchi
159483628/05/2022ArgentinaBuenos AiresCamping Cielo, Delta del ParanáDaniel Osvaldo Fernández
159437628/05/2022ArgentinaBuenos AiresCamping Cielo, Delta del ParanáMauricio Secchi
157380423/04/2022ArgentinaBuenos AiresRío Carabelas, 3ª sección de Islas del Delta del Paraná, Delta del ParanáEsteban Argerich
156525619/03/2022ArgentinaBuenos AiresCamping Cielo, Delta del ParanáFabián Jaruf
156482319/03/2022ArgentinaBuenos AiresCamping Cielo, Delta del ParanáMauricio Secchi
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.