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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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Records from Darregueira

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: 380674
  Adult

Darregueira
Buenos Aires
Argentina
01/27/2020
Mauro Desch
Foto
Photography ID: 363923
  Adult

Darregueira
Buenos Aires
Argentina
11/08/2019
Zulima América Schupbach
Foto
Photography ID: 363922
  Adult

Darregueira
Buenos Aires
Argentina
11/08/2019
Zulima América Schupbach
Foto
Photography ID: 363905
  Adult

Darregueira
Buenos Aires
Argentina
11/09/2019
Zulima América Schupbach
Foto
Photography ID: 363684
  Adult

Darregueira
Buenos Aires
Argentina
11/09/2019
Zulima América Schupbach
Foto
Photography ID: 363402
  Adult

Darregueira
Buenos Aires
Argentina
11/08/2019
Zulima América Schupbach
Foto
Photography ID: 363401
  Adult

Darregueira
Buenos Aires
Argentina
11/07/2019
Zulima América Schupbach
Foto
Photography ID: 363400
  Adult

Darregueira
Buenos Aires
Argentina
11/07/2019
Zulima América Schupbach
Foto
Photography ID: 362824
  Adult

Darregueira
Buenos Aires
Argentina
11/07/2019
Zulima América Schupbach



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
235560808/09/2025ArgentinaBuenos AiresLaguna Espinoza, Darregueira2Mauro Desch
235488107/09/2025ArgentinaBuenos AiresLaguna Espinoza, Darregueira4Mauro Desch
231745709/07/2025ArgentinaBuenos AiresDarregueira4Brenda Desch
210805411/05/2024ArgentinaBuenos AiresLaguna Espinoza, Darregueira6Mauro Desch
210800411/05/2024ArgentinaBuenos AiresCamino rural y laguna, Darregueira4Mauro Desch
210796811/05/2024ArgentinaBuenos AiresMonte de caldenes, Darregueira6Mauro Desch
193199216/12/2023ArgentinaBuenos AiresLaguna Espinoza, Darregueira2Gabriel Carbajales
118791227/01/2020ArgentinaBuenos AiresDarregueiraMauro Desch
113647709/11/2019ArgentinaBuenos AiresCamino Provincial Secundario 001-07, DarregueiraZulima América Schupbach
113542408/11/2019ArgentinaBuenos AiresLa Salada, DarregueiraZulima América Schupbach
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 26/03/2026.