4. Hoatzin
Found in the rainforests of South America, Hoatzin once believed to be a "living fossil". This is reflected in many ways, for example, he ate the leaves of the tree, a diet that is very strange for a bird and fermentation using bacteria to digest food, like cows. Because of this, Hoatzin has a very pungent smell like manure. But the terrible odor Hoatzin is no reason why he included in this list. Hoatzin usually build their nests in the branches of a tree hanging over the water. When disturbed or threatened by a predator, the Hoatzin boy jumped into the water to escape. They are excellent swimmers and divers good and when the danger has passed, they can climb trees and go back to the nest. To do this, the child Hoatzin has two claws on each wing, reminiscent of those of the feathered Archaeopteryx and the other, rather bird-like dinosaurs. Only the young Hoatzin having claws, they disappear and can escape predators by flying. Hoatzin has been the object of debate in the scientific community since its discovery in 1776.
5. Ferruginous Pygmy Owl
Although owls normally known to prey on mice and other rodents, it turns out they also hunt fellow owls and the child usually afraid of owls, when they see an owl during the day (when the owls tend to be less willing to carry out a surprise attack), they scramble to bother to push it away. This behavior is known as "mobbing". This owl is a bird hunter skilled, taking prey up to twice their own size, and therefore they are feared by all other small birds in their area. Of course this is very dangerous for the smaller species such as Ferruginous Pygmy Owl. To protect themselves from mobbing, this bird has 2 spots on the back of his head that resemble eyes. This is enough to deter most small birds, because they usually will not attack the owl who looked at them. If the face of larger birds, surrender may be better.
6. Eurasian Cuckoo
The Eurasian Cuckoo commonly known as bird lays its eggs in the nests of other birds. When the child was born, it destroys the eggs of birds actually nester, thus eliminating any competition, and quickly developed than children of adoptive parents. To protect themselves from threats, female cuckoo has developed an excellent appearance reminiscent of a Sparrow Hawk, a raptor that eat small birds. And supported by the similarity of the two. By posing as a Sparrow Hawk, Cuckoo could scare other birds away from their nests so. During the fake Sparrow Hawk was there, other birds will not be able to return to their nests, and the cuckoo can lay eggs without a problem. There are several other species that mimics the way, but do not just imitate the cuckoo hawk, like Hawk-Cuckoo in South Asia that mimics the type of local sparrows, to the style of flying and even how to perch.
7. Burrowing Owl
Burrowing Owl was found in grasslands and deserts from Canada to Patagonia. They nest in burrows and often use abandoned burrows of other animals, but if they can not find an empty hole, they can also dig their own hole. Burrowing Owl Children are often left alone in a rut and have to hunt for themselves. During this time, the children are vulnerable to predators such as foxes, coyotes, raccoons and house cats. In order to keep the enemy away, burying children Burrowing Owl has developed a process of mimicry. When they feel threatened (for example, if the animal began to dig at the entrance of the burrow), the child produces snakelike hissing calls when warned enemies. Due to the highly venomous viper known to hide in burrows, most predators (including humans), preferring to flee as soon as they hear it. Their defense mechanism is one of the most efficient among the birds, but it has a weak point, no use against actual rattlesnakes. It certainly can not deceive them and the fact that rattlesnakes do suffer deafness.
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