What is a black swan?
Cygnus atratus is a swan of another color, namely black, which distinguishes these birds from other types of swan. This bird, which is commonly known as the Black Swan, comes from many parts of Australia. After their discovery at the end of the 17th century, the black swans were introduced to the zoo and parks in other countries, mainly as decorative birds. Since then, some have escaped and now can be found in other parts of the world, especially in New Zealand and England.
Although it is not considered too large for the swan, the black swan is still a big bird. It can grow to about 60 inches (152.4 cm) and has a wing span of more than 6 feet (1.8 m). Men called Cobs are usually slightly larger than women called pens and black swan can weigh up to £ 20 (9 kg).
The word atratus translates into dressed or covered black, which is perfect for description of the black swans. The feathers of the ripe black swans are completely black, with the excretion of the wings tips that tend to curl on the bird's back. When this big bird flies, flashes white. NeedleThe eyes are red, as well as his account, which has white marks, usually a belt, towards the tip.
, along with other swans, the black swan also has a long, charming neck, which is often curved in the shape of S. For nearly 25 vertebrae, it is assumed that it has the longest neck of any kind of swan. The length of his neck helps this feeding of birds under water.
black swans can usually be found in fresh or salty water, swimming, nesting or refreshments on water and leaves. Although it is more common to live in swamps, lakes and rivers, sometimes you can find right next to Australia and remote coastal islands. The nests can be found on small islands, shallow water or along the coast of the gym. Like Whooper Swan, the black swan is much less territorial and aggressive than many other swans and often live in small colonies.
black swan nest is usually made of water reeds, grasses and sticks and can be afterMeasuring large - up to 4 feet (1.2 meters) across. The construction of the nest usually happens during the wetter months and after the courtship, which can last for two years, the Women's Black Swan will be and her friend to cooperate to build it. These birds are almost always monogamous and also reuse the nest year after year and repair it as needed. When the woman is ready, she puts up to eight large, greenish eggs, each daily apart. After all eggs are laid, males and females sit on the eggs until they hatch.
A little over a month after the start of incubation, a small children's swans, called Cygnets, appear. They are usually covered with a fluffy gray down they lose after about a month. They are swimming in one or two days, but they will still hitchhike on their parents' backs on trips to deep water. Although they are usually able to fly by about six months, Black Swan Cygnets often stay with their family for nine months or more.
In 1697, these birds in Australia discovered these birds. Except for the SevErine and central regions are abundant in many parts of the country. You can find a picture of this swans on the coat of arms and flags of West Australia.