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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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Last published photographs

Foto
Photography ID: 511335
  Adult

Puerto Iguazú
Misiones
Argentina
09/30/2022
Luis Carlos De Volder
Foto
Photography ID: 478623
  Adult

Mar Chiquita
Buenos Aires
Argentina
01/09/2022
Luis Carlos De Volder
Foto
Photography ID: 463172
  Adult

Ranchos
Buenos Aires
Argentina
08/25/2021
Luis Carlos De Volder
Foto
Photography ID: 355046
  Immature

Viedma
Río Negro
Argentina
09/23/2019
Luis Carlos De Volder
Foto
Photography ID: 353828
  Adult

General Conesa
Río Negro
Argentina
09/17/2019
Luis Carlos De Volder
Foto
Photography ID: 221072
  Adult

Rafael Calzada
Buenos Aires
Argentina
09/27/2017
Luis Carlos De Volder
Foto
Photography ID: 180938
  Adult

Villa La Bolsa
Córdoba
Argentina
12/08/2016
Luis Carlos De Volder
Foto
Photography ID: 166423
  Adult

José Mármol
Buenos Aires
Argentina
09/09/2016
Luis Carlos De Volder
Foto
Photography ID: 144062
  Adult

Villa Ventana
Buenos Aires
Argentina
03/19/2016
Luis Carlos De Volder
Foto
Photography ID: 59658
  Adult

Rafael Calzada
Buenos Aires
Argentina
08/23/2014
Luis Carlos De Volder
Foto
Photography ID: 57467
  Adult

Villa La Bolsa
Córdoba
Argentina
07/22/2014
Luis Carlos De Volder
Foto
Photography ID: 53830
  Adult

Rafael Calzada
Buenos Aires
Argentina
06/13/2014
Luis Carlos De Volder



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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
166009830/09/2022ArgentinaMisionesCostanera Tres fronteras, Puerto IguazúLuis Carlos De Volder
153220109/01/2022ArgentinaBuenos AiresBalneario La Caleta - Arroyo Los Cueros, Mar ChiquitaLuis Carlos De Volder
146583025/08/2021ArgentinaBuenos AiresLaguna de Ranchos y alrededores, RanchosLuis Carlos De Volder
110757323/09/2019ArgentinaRío NegroCostanera del Río Negro, ViedmaLuis Carlos De Volder
110368317/09/2019ArgentinaRío NegroCamping municipal, General ConesaLuis Carlos De Volder
62111527/09/2017ArgentinaBuenos AiresCalle Lopez de Gomara entre Altamira e Intendente Gonzalez, Rafael CalzadaLuis Carlos De Volder
51619108/12/2016ArgentinaCórdobaSobre Calle La Rioja, entre Neuquen y Champanian, Villa La BolsaLuis Carlos De Volder
47471709/09/2016ArgentinaBuenos AiresJosé MármolLuis Carlos De Volder
42528019/03/2016ArgentinaBuenos AiresPueblo, Villa VentanaLuis Carlos De Volder
16989823/08/2014ArgentinaBuenos AiresCalle Lopez de Gomara entre Altamira e Intendente Gonzalez, Rafael CalzadaLuis Carlos De Volder
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 12/04/2026.