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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: 684439
  Adult

Río Ceballos
Córdoba
Argentina
04/21/2026
Celina Emilia Iratchet
Foto
Photography ID: 671583
  Adult

General Lavalle
Buenos Aires
Argentina
02/01/2026
Celina Emilia Iratchet
Foto
Photography ID: 670526
  Adult

Pinamar
Buenos Aires
Argentina
01/30/2026
Celina Emilia Iratchet
Foto
Photography ID: 664443
  Juvenile

Lavalle
Buenos Aires
Argentina
12/21/2025
Celina Emilia Iratchet
Foto
Photography ID: 625218
  Adult

Villa Gesell
Buenos Aires
Argentina
01/26/2025
Celina Emilia Iratchet
Foto
Photography ID: 621601
  Adult

Gral. Madariaga
Buenos Aires
Argentina
02/07/2025
Celina Emilia Iratchet
Foto
Photography ID: 586897
  Adult

Pinamar
Buenos Aires
Argentina
06/11/2024
Celina Emilia Iratchet
Foto
Photography ID: 584126
  Adult

General Madariaga
Buenos Aires
Argentina
05/11/2024
Celina Emilia Iratchet
Foto
Photography ID: 584035
  Adult

General Madariaga
Buenos Aires
Argentina
05/11/2024
Celina Emilia Iratchet



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 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
246390721/04/2026ArgentinaCórdobaRío CeballosCelina Emilia Iratchet
242853301/02/2026ArgentinaBuenos AiresGral. Lavalle - Paraje Pavón, General LavalleCelina Emilia Iratchet
242508030/01/2026ArgentinaBuenos AiresPinamarCelina Emilia Iratchet
240390721/12/2025ArgentinaBuenos AiresCamino de la Memoria, LavalleCelina Emilia Iratchet
224550007/02/2025ArgentinaBuenos AiresGral. MadariagaCelina Emilia Iratchet
226801004/02/2025ArgentinaBuenos AiresEstancia Laguna El Rosario, Ruta sin nombrar (-36,953366, -57,156802)Celina Emilia Iratchet
226036626/01/2025ArgentinaBuenos AiresParque Ambiental Villa Gesell, Villa GesellCelina Emilia Iratchet
204284611/06/2024ArgentinaBuenos AiresPinamarCelina Emilia Iratchet
203399311/05/2024ArgentinaBuenos AiresGeneral MadariagaCelina Emilia Iratchet
201243808/03/2024ArgentinaBuenos AiresAlbúfera Laguna Mar ChiquitaCelina Emilia Iratchet
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 28/09/2026.