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Mazama americana

Common Red Brocket


Mazama americana

Corzuela Colorada

Family: Cervidae
Order: Artiodactyla
Class: Mammalia
Phylum / Division: Chordata
Kingdom: Animalia

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Records from Parque Nacional Iguazú

Conservation status: Data Deficient


Description


This medium-sized Neotropical cervid is characterized by its slender and delicate build, featuring a noticeably arched back and hindquarters that are slightly higher than its shoulders. Its pelage displays a vibrant reddish-brown coloration across the back and flanks, which transitions to pale gray or light brown tones on the head and neck, whereas the underparts, inner thighs, and the underside of the tail are a clean white. Adult males develop short, unbranched spike antlers that typically measure between 7 and 15 centimeters in length. Adult body mass ranges from 24 to 48 kilograms, with a shoulder height spanning 70 to 80 centimeters, making this species the largest representative of its genus.

Geographical distribution: The species is widely distributed across the Neotropical region of South America. Its geographical range extends from the northern territories of Colombia, Venezuela, and the Guianas, southward through the expansive Amazon basin of Brazil, eastern Ecuador, and Peru, reaching its southern limits in Bolivia, Paraguay, and northern Argentina.

Habitat: It primarily occupies dense humid tropical forests and subtropical rainforests, showing a strong preference for pristine primary growth areas with thick understory vegetation. It is also commonly found in gallery forests, wooded wetlands, and occasionally in mature secondary successional forests, provided there is reliable proximity to permanent water sources and dense vegetative cover to shelter from predators and human disturbance.

Feeding: Classified as a frugivore and concentrate selector, its diet is composed mainly of ripe fallen fruits gathered directly from the forest floor. It complements this nutrient-rich food source by browsing on tender leaves, young shoots, flowers, wild fungi, and occasionally highly digestible herbaceous plants, actively avoiding coarse fibrous grasses in favor of more easily digestible vegetation.

Behavior: It is a highly solitary and elusive animal, exhibiting peak activity levels during crepuscular and nocturnal hours. The species relies heavily on chemical communication, utilizing specialized scent glands located near the eyes and between the hooves to mark territories and communicate with conspecifics. When threatened, its primary defense strategy is to freeze in place to blend with the dense foliage, and if detected, it flees rapidly through the undergrowth, being also an excellent swimmer capable of crossing wide rivers.

Reproduction: This mammal does not exhibit a strict seasonal breeding cycle, being capable of breeding throughout the entire year, with localized births often peaking during periods of high fruit availability. Following a gestation period of approximately 218 to 228 days, females give birth to a single offspring (rarely twins), which is born with a coat covered in white spots that provide exceptional camouflage against predators, fading gradually within a few months.

Conservation status: It is currently assessed as Data Deficient (DD) by the International Union for Conservation of Nature (IUCN), largely due to ongoing taxonomic revisions and the complex splitting of its species group. However, localized populations face significant and severe threats from habitat loss and fragmentation caused by agricultural expansion and intensive subsistence and sport hunting for its meat.



Compilation and publication: EcoRegistros – 13/09/2026




Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 592966
  Adult

Parque Nacional Iguazú
Misiones
Argentina
04/28/2023
Federico Silvestre
Foto
Photography ID: 517689
  Adult

Parque Nacional Iguazú
Misiones
Argentina
11/02/2022
Elsa Longo
Foto
Photography ID: 516593
  Adult

Parque Nacional Iguazú
Misiones
Argentina
11/02/2022
Guillermo Marcaida
Foto
Photography ID: 457018
  Adult

Parque Nacional Iguazú
Misiones
Argentina
07/27/2021
Jorge La Grotteria
Foto
Photography ID: 455559
  Adult

Parque Nacional Iguazú
Misiones
Argentina
07/16/2021
Andrés Cecconi
Foto
Photography ID: 359068
  Adult

Parque Nacional Iguazú
Misiones
Argentina
08/03/2019
Jorge La Grotteria
Foto
Photography ID: 359067
  Juvenile

Parque Nacional Iguazú
Misiones
Argentina
08/03/2019
Jorge La Grotteria
Foto
Photography ID: 337295
♂
  Adult

Parque Nacional Iguazú
Misiones
Argentina
03/10/2019
Gabriel Moresco
Foto
Photography ID: 323402
♂
  Adult

Parque Nacional Iguazú
Misiones
Argentina
03/10/2019
Gabriel Moresco
Foto
Photography ID: 297489
♀
  Juvenile

Parque Nacional Iguazú
Misiones
Argentina
11/10/2018
Gabriel Moresco



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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
210146927/05/2024ArgentinaMisionesParque Nacional Iguazú1Gustavo Fernando Durán
181148807/08/2023ArgentinaMisionesRuta Nacional 101 - Tierra colorada, Parque Nacional Iguazú1Gustavo Fernando Durán
212117828/04/2023ArgentinaMisionesEntrada A Parque Nacional Iguazú, Parque Nacional IguazúFederico Silvestre
168804902/11/2022ArgentinaMisionesRuta 101 Arroyo Tacuara, Parque Nacional IguazúElsa Longo
168173102/11/2022ArgentinaMisionesRuta 101 Arroyo Tacuara, Parque Nacional IguazúGuillermo Marcaida
163969401/09/2022ArgentinaMisionesRuta Nacional 101 - Tierra colorada, Parque Nacional IguazúWalter Liriel Gómez Umpierrez
149022812/10/2021ArgentinaMisionesRuta Nacional 101 - Tierra colorada, Parque Nacional Iguazú1Guillermo Marcaida
148995712/10/2021ArgentinaMisionesRuta Nacional 101 - Tierra colorada, Parque Nacional Iguazú1Elsa Longo
143540427/07/2021ArgentinaMisionesRuta Nacional 101 - Tierra colorada, Parque Nacional Iguazú1María Alejandra Sosa
143533127/07/2021ArgentinaMisionesRuta Nacional 101 - Tierra colorada, Parque Nacional Iguazú1Jorge La Grotteria
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Common Red Brocket (Mazama americana) – Species account. Accessed from www.ecoregistros.org on 25/09/2026.