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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 Las Grutas

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: 631387
  Adult

Las Grutas
Río Negro
Argentina
03/27/2025
Carlos De Biagi
Foto
Photography ID: 608601
  Adult

Las Grutas
Río Negro
Argentina
10/28/2024
Sergio Cusano
Foto
Photography ID: 535461
 
Las Grutas
Río Negro
Argentina
04/26/2023
Adrian Braidotti
Foto
Photography ID: 425749
  Juvenile

Las Grutas
Río Negro
Argentina
12/12/2020
Mariana Mansinho
Foto
Photography ID: 385883
  Adult

Las Grutas
Río Negro
Argentina
02/17/2020
Carlos De Biagi
Foto
Photography ID: 385784
  Adult

Las Grutas
Río Negro
Argentina
02/17/2020
Carlos De Biagi
Foto
Photography ID: 384955
  Adult

Las Grutas
Río Negro
Argentina
02/14/2020
Carlos De Biagi
Foto
Photography ID: 375422
  Adult

Las Grutas
Río Negro
Argentina
01/13/2020
Andrés Cecconi
Foto
Photography ID: 331567
  Adult

Las Grutas
Río Negro
Argentina
04/30/2019
Zulima América Schupbach
Foto
Photography ID: 331566
  Adult

Las Grutas
Río Negro
Argentina
04/30/2019
Zulima América Schupbach
Foto
Photography ID: 257656
  Adult

Las Grutas
Río Negro
Argentina
03/31/2018
Mariano Costa
Foto
Photography ID: 90783
  Adult

Las Grutas
Río Negro
Argentina
03/24/2015
Adriana Bellotti



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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
227678827/03/2025ArgentinaRío NegroCamping Oasis, Las GrutasCarlos De Biagi
218610428/10/2024ArgentinaRío NegroLas GrutasSergio Cusano
203075818/04/2024ArgentinaRío NegroLas Grutas, Las GrutasAdrian Braidotti
219381102/12/2023ArgentinaRío NegroSierra Colorada y, Las GrutasGisela Ballent
192234802/12/2023ArgentinaRío NegroSierra Colorada y, Las GrutasSantiago Juan Torres
192761929/11/2023ArgentinaRío NegroLas Grutas1Diego Oscar
176664626/04/2023ArgentinaRío NegroLas Grutas, Las GrutasAdrian Braidotti
172326203/02/2023ArgentinaRío NegroLas Grutas, Las Grutas1Gabriel Carbajales
169253423/11/2022ArgentinaRío NegroLas Grutas1Maximiliano Sager
165556115/10/2022ArgentinaRío NegroCostanera, Las Grutas1Julián Tocce
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.