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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: 702286
  Adult

Cortaderas
San Luis
Argentina
08/26/2026
Hugo Alberto Valderrey
Foto
Photography ID: 699444
  Adult

Miramar de Ansenuza
Córdoba
Argentina
08/08/2026
Hugo Alberto Valderrey
Foto
Photography ID: 699054
  Adult

General Pico
La Pampa
Argentina
08/11/2026
Hugo Alberto Valderrey
Foto
Photography ID: 698421
  Adult

Villa Quilino
Córdoba
Argentina
08/03/2026
Hugo Alberto Valderrey
Foto
Photography ID: 696554
  Adult

General Pico
La Pampa
Argentina
07/21/2026
Hugo Alberto Valderrey
Foto
Photography ID: 694593
♂ ♀
  Adult

Departamento Utracan
La Pampa
Argentina
07/12/2026
Hugo Alberto Valderrey
Foto
Photography ID: 691518
  Adult

General Acha
La Pampa
Argentina
06/16/2026
Hugo Alberto Valderrey
Foto
Photography ID: 681867
  Adult

General Pico
La Pampa
Argentina
04/09/2026
Hugo Alberto Valderrey
Foto
Photography ID: 680511
  Adult

General Pico
La Pampa
Argentina
03/27/2026
Hugo Alberto Valderrey
Foto
Photography ID: 666948
  Adult

General Pico
La Pampa
Argentina
01/07/2026
Hugo Alberto Valderrey



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Species vocalizations

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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
251828626/08/2026ArgentinaSan LuisDique piscu yaco hacia la sierra, CortaderasHugo Alberto Valderrey
250937011/08/2026ArgentinaLa PampaBarrio Pueblo Nuevo, General PicoHugo Alberto Valderrey
251096908/08/2026ArgentinaCórdobaMiramar de AnsenuzaHugo Alberto Valderrey
250780103/08/2026ArgentinaCórdobaDeán Funes, Villa QuilinoHugo Alberto Valderrey
250202121/07/2026ArgentinaLa PampaReserva Natural Urbana Delfín Perez de General Pico., General PicoHugo Alberto Valderrey
249330212/07/2026ArgentinaLa PampaGeneral Acha, Departamento UtracanHugo Alberto Valderrey
248450116/06/2026ArgentinaLa PampaParque Campos, General AchaHugo Alberto Valderrey
248993708/05/2026ArgentinaSan LuisRio lujan, Reserva Natural Estricta Quebrada de las HigueritasHugo Alberto Valderrey
246808406/05/2026ArgentinaSan LuisParque Provincial Bajo de VélizHugo Alberto Valderrey
245685709/04/2026ArgentinaLa PampaBarrio Pueblo Nuevo, General PicoHugo Alberto Valderrey
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.