Aulacorhynchus derbianus

Aulacorhynchus derbianus (Chestnut tipped toucanet) is a medium-sized climbing bird.

The chestnut spotted Toucan's song is usually a series of long, toneless guttering sounds, similar to the croaks of frogs and dogs, as well as dry clicks, and is also the loudest forest bird. It lives in mountains from 1,000 to 3,600 meters above sea level and likes to live in treetops.

When the chestnut spotted toucan eats, it always pecks the food with the tip of its bill, then raises its neck, throws the food upward, and opens its big mouth to accurately put the food down its throat, without having to go through the long mouth and spend time "swallowing". It is omnivorous and feeds on fruits, seeds and insects.

The chestnut spotted toucan burrows into decrepit trees and builds its nest in a hole high up in the tree. Both parents care for the chicks, but there is no clear responsibility for watching the chicks at night. Large droppings and residues will use the beak to peck out the nest, which is kept fairly tidy. They also sometimes raid the nests of young birds and eat the 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.

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It 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 spotted toucan resembles a hornbill in appearance. The body feathers are mainly green, and the wings and tail are darker. White collar, diphtheria, beak is very large, at the tip and base of the beak a little bright red, but light weight, although the bird's beak is large, but the weight is 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.