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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 Vicente López

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: 581154
  Adult

Vicente López
Buenos Aires
Argentina
04/19/2024
Alec Earnshaw
Foto
Photography ID: 571106
  Adult

Vicente López
Buenos Aires
Argentina
02/19/2024
Pablo Marcelo Meyer
Foto
Photography ID: 499471
  Immature

Vicente López
Buenos Aires
Argentina
07/07/2022
Gabriel Carbajales
Foto
Photography ID: 453336
  Adult

Vicente López
Buenos Aires
Argentina
07/09/2021
Diego Alfonso Rosa
Foto
Photography ID: 355543
  Adult

Vicente López
Buenos Aires
Argentina
10/06/2019
Daniel Osvaldo Fernández
Foto
Photography ID: 336671
  Adult

Vicente López
Buenos Aires
Argentina
04/05/2019
Guillermo C Olivero
Foto
Photography ID: 228529
 
Vicente López
Buenos Aires
Argentina
11/04/2017
Diego Carus
Foto
Photography ID: 228350
  Adult

Vicente López
Buenos Aires
Argentina
03/26/2017
Zulima América Schupbach
Foto
Photography ID: 90362
  Adult

Vicente López
Buenos Aires
Argentina
03/23/2015
Virginia Bonifacio
Foto
Photography ID: 69704
  Adult

Vicente López
Buenos Aires
Argentina
11/20/2014
Javier Presas
Foto
Photography ID: 46626
  Adult

Vicente López
Buenos Aires
Argentina
03/23/2014
Daniela Vazquez



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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
244668214/03/2026ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López2Gabriel Carbajales
244067726/02/2026ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López4Gabriel Carbajales
240337123/12/2025ArgentinaBuenos AiresReserva Natural Yrigoyen (yrigoyen y el Río), Vicente López1Diego Oscar
238442428/10/2025ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López3Gabriel Carbajales
237904622/10/2025ArgentinaBuenos AiresArroyo Güemes (calle Güemes y El Río), Paseo Costero, Vicente López3Gabriel Carbajales
236903824/09/2025ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López2Gabriel Carbajales
236899617/09/2025ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López3Gabriel Carbajales
235174203/09/2025ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López4Gabriel Carbajales
235164127/08/2025ArgentinaBuenos AiresÁrea Natural Yrigoyen (Yrigoyen y el Río), Vicente López4Gabriel Carbajales
236030824/08/2025ArgentinaBuenos AiresReserva Ecológica de Vicente López, Vicente López4Julian Uriel Collado
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 19/03/2026.