Aulacorhynchus sulcatus

Aulacorhynchus sulcatus, also known as Groove-billed toucanet, has three subspecies.

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

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

The Toucan burrows into decayed 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. - Lay 2 to 4 eggs. They also sometimes raid the nests of young birds and eat the eggs and chicks. 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 appearance of the toucan is slightly like that of the hornbill, and the body feathers are mainly green. The back feathers and wings are dark, with red spots on the tail. Beak is very large, overall bluish purple, upper half near the base purplish red, although the volume is large, but the weight is light, although the beak of this bird 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.