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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 Rocha

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: 672541
  Adult

Punta del Diablo
Rocha
Uruguay
01/19/2026
Pablo Marcelo Meyer
Foto
Photography ID: 639512
  Adult

Rincon de laguna
Rocha
Uruguay
01/20/2025
Eugenia Boggiano
Foto
Photography ID: 333439
  Adult

Laguna Negra
Rocha
Uruguay
05/19/2019
Luis Mier
Foto
Photography ID: 326191
  Adult

Parque Nacional San Miguel
Rocha
Uruguay
04/02/2019
Hernán Tolosa
Foto
Photography ID: 259265
  Adult

La Pedrera
Rocha
Uruguay
12/08/2009
Tomás Hancke
Foto
Photography ID: 38497
  Adult

Barra de Valizas
Rocha
Uruguay
02/01/2014
Julio Cesar Castillo Yazauskas



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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
243152619/01/2026UruguayRochaCerca de Playa La Viuda, Punta del DiabloPablo Marcelo Meyer
226166012/02/2025UruguayRochaLaguna de Rocha., Rocha2Pablo Eguia
226147011/02/2025UruguayRocha-33.986274, -53.921531, Camino de Wilson2Pablo Eguia
226144411/02/2025UruguayRocha-33.974539, -53.929318, Camino Wilson3Pablo Eguia
226066609/02/2025UruguayRochaLa Pedrera1Pablo Eguia
226061309/02/2025UruguayRochaLaguna de Rocha2Pablo Eguia
226025006/02/2025UruguayRochaBañado de los Indios, Ruta 142Pablo Eguia
226016805/02/2025UruguayRochaLa Pedrera1Pablo Eguia
225848503/02/2025UruguayRochaLaguna de Rocha4Pablo Eguia
225804701/02/2025UruguayRochaLa Pedrera1Pablo Eguia
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 19/04/2026.