Chestnut-capped blackbird

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Chestnut-capped blackbird
Chrysomus ruficapillus -Costanera Sur Nature Reserve, Argentina-8.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Icteridae
Genus: Chrysomus
C. ruficapillus
Binomial name
Chrysomus ruficapillus
(Vieillot, 1819)
Chrysomus ruficapillus map.svg
C. ruficapillus distribution

Agelaius ruficapillus Vieillot, 1819

The chestnut-capped blackbird (Chrysomus ruficapillus) is a species of bird in the family Icteridae. It is found in Argentina, Bolivia, Brazil, French Guiana, Paraguay, and Uruguay, where its natural habitats are swamps, ricefields and pastureland. The International Union for Conservation of Nature rates its conservation status as "least concern".


The chestnut-capped blackbird is sexually dimorphic. It has a straight dark-coloured beak with a sharp tip, and dark legs. The male has a chestnut-coloured head and throat but is otherwise glossy black; birds in the southern part of the range have darker heads than those in the north. The upper parts of the female are a dark olive-brown, slightly streaked with black, and the underparts are paler olive-brown; the streaking on the back of this species is less distinct than in other birds in this genus. The voice consists of various trills and whistles, the song being a lengthy "chree-chree-churrr".[2]


The chestnut-capped blackbird is found in the tropical and semi-tropical eastern part of South America at altitudes of up to 850 metres (2,800 ft). Its range covers much of the Amazon Basin and extends from northern Brazil to northern Argentina. It is found in the vicinity of water, in marshes, in nearby grassland and in rice fields.[2]


The population of the chestnut-capped blackbird has not been quantified but appears to be stable. The bird has an extremely wide range and is reported as being common, and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".[1]


  1. ^ a b BirdLife International (2012). "Chrysomus ruficapillus". IUCN Red List of Threatened Species. IUCN. 2012. Retrieved 26 November 2013.
  2. ^ a b Ridgely, Robert S.; Tudor, Guy (2009). Field Guide to the Songbirds of South America: The Passerines. University of Texas Press. p. 669. ISBN 978-0-292-71748-0.