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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: 113201
  Adult

Guatraché
La Pampa
Argentina
09/06/2015
Federico Burgos Bauer
Foto
Photography ID: 79407
  Adult

Guatraché
La Pampa
Argentina
01/28/2015
Federico Burgos Bauer
Foto
Photography ID: 75507
  Adult

Guatraché
La Pampa
Argentina
01/04/2015
Federico Burgos Bauer
Foto
Photography ID: 73096
  Adult

Toay
La Pampa
Argentina
12/21/2014
Federico Burgos Bauer
Foto
Photography ID: 72847
  Juvenile

Toay
La Pampa
Argentina
12/21/2014
Federico Burgos Bauer



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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
32606906/09/2015ArgentinaLa PampaLaguna Guatraché, GuatrachéFederico Burgos Bauer
25587407/03/2015ArgentinaLa PampaReserva Natural Urbana La MalvinaFederico Burgos Bauer
23227828/01/2015ArgentinaLa PampaLaguna Guatraché, GuatrachéFederico Burgos Bauer
22152704/01/2015ArgentinaLa PampaPredio Agrotécnica, GuatrachéFederico Burgos Bauer
21162921/12/2014ArgentinaLa PampaJardín Botánico Provincial, ToayFederico Burgos Bauer
18445405/10/2014ArgentinaLa PampaSendero a la Laguna de los Chañares, Reserva Provincial Parque LuroFederico Burgos Bauer
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 29/03/2026.