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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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Number of Photography: 3174




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Number of Recorded Vocalizations: 19



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
María Alejandra Sosa05/31/2025ArgentinaBuenos AiresManuel AlbertiN/AN/ANoNo
Pablo Bruni03/12/2024ArgentinaEntre RíosVilla ZorraquinConcordiaN/AN/AYesNo
Pablo Bruni11/11/2023ArgentinaEntre RíosVilla ZorraquinConcordiaN/AN/AYesNo
Pablo Bruni01/18/2022ArgentinaEntre RíosVilla ZorraquinConcordiaN/AN/AYesNo
Diego Oscar04/17/2022ArgentinaBuenos AiresCamino E/ Saavedra y Abra el HinojoN/AN/AYesNo
Gustavo Fernando Durán08/18/2014ArgentinaSanta FeCamino RuralSan Jerónimo NorteIndistinguishableAdultYesNo
Nicolas Olejnik08/07/2011ArgentinaBuenos AiresReserva Natural del PilarN/AAdultNoNo
Nicolas Olejnik08/04/2011ArgentinaBuenos AiresReserva Natural del PilarN/AAdultNoNo
Luis Fernandez Campos01/07/2015ArgentinaCórdobaSan Antonio de Arredondo♂ ♀SeveralNoNo
Santiago Sainz-trápaga06/19/2014ArgentinaChubutRío ChubutValle Inferior del Río Chubut (VIRCH)IndistinguishableAdultYesNo
Carlos M. Grassini08/31/2014ArgentinaEntre RíosCalle Inmigrantes Percara entre 25 de Mayo y ruta 2ChajaríIndistinguishableAdultYesNo
Carlos M. Grassini05/06/2013ArgentinaEntre RíosCalle Siburu entre Udine y Av. V. Libertad (30°44´49.85"s; 58° 0´11.77"o)ChajaríIndistinguishableAdultYesNo
Jose Luis Merlo09/07/2011ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo
Jose Luis Merlo09/07/2011ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo
Diego Oscar05/14/2011ArgentinaBuenos AiresReserva Ecológica Vicente LópezIndistinguishableAdultYesNo
Jose Luis Merlo08/10/2006ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableN/ANoNo
Jose Luis Merlo02/14/2009ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo
Jose Luis Merlo04/10/2009ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo
Jose Luis Merlo06/19/2009ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo


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Number of Films: 21





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Number of Records: 21329



Page 1 of 2133
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
246088119/04/2026ArgentinaBuenos AiresCamino de la Ribera Norte 374-202, Parque Natural Municipal Ribera Norte (San Isidro)Rodolfo Seró
246025419/04/202616:48ArgentinaSanta FeParque Enrique Nieman 80, San Jerónimo Norte2Gustavo Fernando Durán
246104718/04/2026ArgentinaCórdobaCampo Durando 2, Las VarillasHugo Caverzasi
246084818/04/2026ArgentinaEntre RíosCamino Cuatro Hermanas6Rodolfo Seró
246077218/04/2026ArgentinaEntre RíosCeibas5Rodolfo Seró
246054718/04/202617:09ArgentinaBuenos AiresLucio Mansilla 810, San Pedro1Jorge La Grotteria
246050518/04/202611:50ArgentinaBuenos AiresAcceso Vuelta de Obligado2Jorge La Grotteria
246050318/04/202611:49ArgentinaBuenos AiresLucio Mansilla 12000, San Pedro2Jorge La Grotteria
246048118/04/202611:11ArgentinaBuenos AiresCamino sin nombrar1Jorge La Grotteria
246044818/04/2026ArgentinaEntre RíosCamino Cuatro Hermanas6Diego Oscar
Page 1 of 2133

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 21/04/2026.