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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 Buenos Aires

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: 681984
 
Mar del Plata
Buenos Aires
Argentina
04/02/2026
Paola Finelli
Foto
Photography ID: 679763
  Adult

La Emilia
Buenos Aires
Argentina
03/22/2026
Peter Vidana
Foto
Photography ID: 679039
  Adult

Hurlingham
Buenos Aires
Argentina
03/23/2026
Jorgelina Lopez
Foto
Photography ID: 679038
  Adult

Hurlingham
Buenos Aires
Argentina
03/23/2026
Jorgelina Lopez
Foto
Photography ID: 678989
  Adult

Mar del Plata
Buenos Aires
Argentina
03/21/2026
Jorge Iriberri
Foto
Photography ID: 678374
  Adult

Pehuen Co
Buenos Aires
Argentina
10/13/2017
Gustavo Abel Larracoechea
Foto
Photography ID: 676079
  Adult

Tandil
Buenos Aires
Argentina
01/22/2026
Liliana Rubilar Puerta
Foto
Photography ID: 676069
  Adult

Puerto de San Isidro
Buenos Aires
Argentina
02/17/2026
Andrea Casaburi



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Last Vocalizations published



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
María Alejandra Sosa05/31/2025ArgentinaBuenos AiresManuel AlbertiN/AN/ANoNo
Diego Oscar04/17/2022ArgentinaBuenos AiresCamino E/ Saavedra y Abra el HinojoN/AN/AYesNo
Nicolas Olejnik08/07/2011ArgentinaBuenos AiresReserva Natural del PilarN/AAdultNoNo
Nicolas Olejnik08/04/2011ArgentinaBuenos AiresReserva Natural del PilarN/AAdultNoNo
Diego Oscar05/14/2011ArgentinaBuenos AiresReserva Ecológica Vicente LópezIndistinguishableAdultYesNo



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Last Filmings published





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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
245712710/04/202609:53ArgentinaBuenos AiresDoctor Manuel Argerich 15, Reserva Natural del PilarDolores Fernandez
245708409/04/2026ArgentinaBuenos AiresReserva Natural Yrigoyen (yrigoyen y el Río), Vicente López4Diego Oscar
245665004/04/2026ArgentinaBuenos AiresLaguna a la 65, Carlos María Naón3Rodolfo Domnanovich
245711602/04/2026ArgentinaBuenos AiresMar del PlataPaola Finelli
245606902/04/2026ArgentinaBuenos AiresParque Costero del Sur3Diego Oscar
245649529/03/2026ArgentinaBuenos AiresMar de Cobo--Parque Lago, Mar Chiquita1Enrique Chiurla
245386828/03/202611:24ArgentinaBuenos AiresTandil2Santiago Juan Torres
245481424/03/2026ArgentinaBuenos AiresReserva Natural Puerto Mar del Plata6Enrique Chiurla
245454324/03/2026ArgentinaBuenos AiresReserva Natural Puerto Mar del Plata6Victor Hugo Michelini
245063424/03/2026ArgentinaBuenos AiresLos Carpinchos, LoberíaSusana Gomez
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 12/04/2026.