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Mimus saturninus

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 Parque Nacional El Palmar

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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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
252722611/09/2026ArgentinaEntre RíosParque Nacional El Palmar3Diego Oscar
245598401/04/2026ArgentinaEntre RíosParque Nacional El PalmarDolores Fernandez
245368822/03/202614:00ArgentinaEntre RíosParque Nacional El Palmar3María Alejandra Sosa
244958222/03/202614:00ArgentinaEntre RíosParque Nacional El Palmar3Jorge La Grotteria
245553918/03/2026ArgentinaEntre RíosParque Nacional El PalmarWalter Liriel Gómez Umpierrez
243995914/01/2026ArgentinaEntre RíosParque Nacional El PalmarElsa Longo
238356009/11/2025ArgentinaEntre RíosParque Nacional El PalmarNicolas Olejnik
237862911/10/2025ArgentinaEntre RíosParque Nacional El Palmar2Faustino Hollmann
235471007/09/2025ArgentinaEntre RíosParque Nacional El Palmar1Diego Oscar
236234028/08/2025ArgentinaEntre RíosSendero El Pastizal, Parque Nacional El PalmarGaston Lisandro Gabinetti
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) – Species account. Accessed from www.ecoregistros.org on 19/09/2026.