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Mimus saturninus

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





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 78060
  Juvenile

Guatraché
La Pampa
Argentina
01/19/2015
Gustavo Kin
Foto
Photography ID: 78058
  Adult

Guatraché
La Pampa
Argentina
01/19/2015
Gustavo Kin
Foto
Photography ID: 68435
  Adult

Necochea
Buenos Aires
Argentina
01/27/2013
Gustavo Kin
Foto
Photography ID: 68429
  Adult

Bahía Blanca
Buenos Aires
Argentina
10/29/2014
Gustavo Kin
Foto
Photography ID: 64262
  Adult

Reserva Provincial Parque Luro
La Pampa
Argentina
10/05/2014
Gustavo Kin



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Species vocalizations

Last vocalizations published



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Species videos

Last filmings published


Video ID: 845
  Adult

Villa Ventana
Buenos Aires
Argentina
02/13/2015
Gustavo Kin



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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
78110807/07/2018ArgentinaBuenos AiresClub de Pesca y Turismo de Saavedra, Saavedra - Partido de SaavedraGustavo Kin
33119616/09/2015ArgentinaCiudad Autónoma de Buenos AiresCamino de los Plumerillos, cerca del Río, Reserva Ecológica Costanera Sur (RECS)Gustavo Kin
24128113/02/2015ArgentinaBuenos AiresVilla VentanaGustavo Kin
22906719/01/2015ArgentinaLa PampaLaguna Guatraché, GuatrachéGustavo Kin
22616115/01/2015ArgentinaRío NegroCosta del Rio Negro, General RocaGustavo Kin
19720829/10/2014ArgentinaBuenos AiresZona Suburbana, Bahía BlancaGustavo Kin
18465205/10/2014ArgentinaLa PampaCentro de interpretación, Reserva Provincial Parque LuroGustavo Kin
19721527/01/2013ArgentinaBuenos AiresParque Miguel Lillo, NecocheaGustavo Kin
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) – Species account. Accessed from www.ecoregistros.org on 26/09/2026.