Pteroglossus castanotis

Known as Pteroglossus castanotis or chestney-eared Aracari, it is named for the brown feathers that surround its ears.

The chestnut tufted toucan is also the noisiest forest bird, producing loud rumbles, trumpets, and screeches. Its nest is built in a hole high in a tree. When eating, always peck the food with the tip of the mouth first, then tilt the neck, throw the food upward, and then open the big mouth to accurately put the food into the throat, without having to go through the long mouth and spend time in the process of "swallowing". It is omnivorous and feeds on fruits, seeds, and insects。

The cucurbita nests in tree cavities and sometimes preys on the nests of young birds, eating eggs and chicks. - Lay 2 to 4 eggs. Smooth white eggs are piled in unlined holes and hatch in about 16 days. The hatchlings are completely naked, take at least three weeks to open their eyes, and begin to live their lives about 45 days after hatching.

Listed on the IUCN Red List of Threatened Species (IUCN) 2016 ver 3.1 - Least Concern (LC).

Listed in Appendices I, II and III of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) 2019 edition Appendix III.

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The species is found in South America (Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Bolivia, Paraguay, Brazil, Chile, Argentina, Uruguay, and the Malvinas Islands (also known as the Falkland Islands).
The chestnut Tufted Toucan inhabits warm forests and marginal areas, preferring to live in treetops.

The chestnut Tufted Toucan has a black upper body, a dark red waist, and a head that is usually black and chestnut. The lower body is predominantly yellow, with a red stripe forming a large lumbar patch. The proboscis exhibit a variety of color combinations, including black with yellow, orange, and red. The margin of the beak is usually clearly serrated, black or ivory in appearance, and looks somewhat like a tooth. The beak of the chestnut Tufted Toucan, though large, weighs less than 30 grams. The structure of the mouth bone is very special, it is not a dense entity, the outside is a layer of crust, through the middle of extremely fine fibers, porous spongy tissue, filled with air, so that it does not feel heavy pressure.
Tufted toucan is one of the few species of toucan with distinct sexual differences; At four weeks of age, chicks can be sexed by their plumage.