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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 Cerca de Herrera Vegas

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: 669351
  Squab

Henderson
Buenos Aires
Argentina
01/25/2026
Juan Manuel Canepa
Foto
Photography ID: 669350
  Adult

Henderson
Buenos Aires
Argentina
01/25/2026
Juan Manuel Canepa
Foto
Photography ID: 628357
  Immature

Henderson
Buenos Aires
Argentina
03/27/2025
Juan Manuel Canepa
Foto
Photography ID: 568741
  Juvenile

Henderson
Buenos Aires
Argentina
02/04/2024
Juan Manuel Canepa
Foto
Photography ID: 564733
  Adult

Henderson
Buenos Aires
Argentina
01/13/2024
Juan Manuel Canepa
Foto
Photography ID: 554827
  Immature

Henderson
Buenos Aires
Argentina
11/03/2023
Juan Manuel Canepa
Foto
Photography ID: 540716
  Adult

Henderson
Buenos Aires
Argentina
07/06/2023
Juan Manuel Canepa



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
242079325/01/2026ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
242079225/01/2026ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
226687627/03/2025ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
196567604/02/2024ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
194574113/01/2024ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
190734203/11/2023ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
178822906/07/2023ArgentinaBuenos AiresCerca de Herrera Vegas, HendersonJuan Manuel Canepa
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 23/03/2026.