The eyes on the wings

In America there is a kind of bird that scientific name is Eurypyga helias live very gentle, but not so that they are easily bullied.
This elegant birds often walking quietly. Their characteristics are also quite recognizable: long beak, neck slender, neck and legs are quite long, feet and beak are yellow. The coat is soft, the upper body can be brown, lower body with black stripes, antique brown, black cap with white stripes, brownish chest.
When Eurypyga helias defend against enemies aggressive, they spread their wings as a shield - this time, their wings and tail stretch maximized. These spots on the wings make the others animals mistaken two eyes should not dare to attack. Recently, biologists know this is kind wings spread wide to intimidate, during a long time ago, people thought it was part of the mating ritual.
"Birds threaten" often live alone or live in pairs in the forest area near the water line. They feed on mollusks and insects, catch prey in shallow water or places around the rocks near the water.
Superficially males and females look very similar, they are usually well camouflaged by their plumage speckled. Breeding season is beginning wet season - when there are enough mud for their nests. The nest is made of the stuff taken from trees and mud. Although both males and females are joining to make nest, but nest looks very primitive structure, it is usually made out of twigs.
The female bird per litter birth only 2 eggs, eggs with dark yellow. Both the father and the mother bird birds brood for 27 days, young bird hatch in about 21 days.
Birds Eurypyga helias distributed from Mexico to northern South America South.

Refer: Khoahoc