Chestnut-eared aracari
species of bird
The chestnut-eared aracari or chestnut-eared araçari (Pteroglossus castanotis) is a near-passerine bird in the toucan family Ramphastidae. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, and Peru.
Taxonomy and systematics
Two subspecies of chestnut-eared aracari are recognized, the nominate P. c. castanotis (Gould, 1834) and P. c. australis (Cassin, 1867).
Description
The chestnut-eared aracari is 43 to 47 cm (17 to 19 in) long and weighs 220 to 310 g (7.8 to 11 oz). Males and females have the same bill coloration, though the female's bill is shorter. The bills of nominate subspecies adults have a yellow line at the base and a mostly black mandible. The maxilla has a black stripe on the culmen, a triangle of black narrowing toward the tip, orange-yellow between them, and black and ivory markings on the edge that look like teeth. Adult males have a black crown and upper nape, a chestnut lower nape, a dark green back, and a red rump.
This brief starts where responsible research should: with the source description of “Chestnut-eared aracari” as species of bird. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of bird. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q790670. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1834 and 1867.
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This entry incorporates text from “Chestnut-eared aracari” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.