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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: 391278
  Fledgling

Necochea
Buenos Aires
Argentina
01/17/2020
Fernando Alberto Segura
Foto
Photography ID: 240969
  Fledgling

Necochea
Buenos Aires
Argentina
01/14/2018
Fernando Alberto Segura



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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
202444208/02/2024ArgentinaBuenos AiresPemsa, Partido de General AlvaradoFernando Alberto Segura
202636016/10/2023ArgentinaMisionesCamping del cuñapirú, Cainguás2Fernando Alberto Segura
202624114/10/2023ArgentinaMisionesReserva Natural Silvestre Parque Federal Campo San Juan, Santa Ana2Fernando Alberto Segura
180898423/07/2023ArgentinaBuenos AiresIsla Talavera, ZárateFernando Alberto Segura
169688518/12/2022ArgentinaBuenos AiresPunta Indio, Parque Costero del SurFernando Alberto Segura
167620005/11/2022ArgentinaBuenos AiresEl Puesto, Partido de VillarinoFernando Alberto Segura
156721504/04/2022ArgentinaBuenos AiresPedro Luro, Partido de Villarino1Fernando Alberto Segura
156720003/04/2022ArgentinaBuenos AiresLaguna La Salada, Partido de Villarino2Fernando Alberto Segura
155934805/03/2022ArgentinaBuenos AiresIsla Talavera, Zárate3Fernando Alberto Segura
153784106/01/2022ArgentinaBuenos AiresLaguna Tupungato3Fernando Alberto Segura
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 07/04/2026.