A swan
There are hundreds of thousands of wild birds all over the world, and the swans are absolutely one of them. The swans have beautiful and noble shapes, white and bright feathers, and glamorous and noble qualities in their wings and feet. From our ancient han goozu liu bang's song to the classic russian composer tchaikovsky's song, "swan lake " , the sanctified and beautiful image of the swan has been praised and admired in countless ways, both in and out of history。
The swan is a large bird, a geese, a duck. There are three types of swans in the country, namely, cygnus cygnus, swans (cygnus columbianus) and swans (cygnus olor). These three swans are state-class protected animals, found in the protective management area of my city。
The giant swan, 120-160 cm long, with clean feathers, long necks, fat and full, and black at the end of the mouth. The swan and the swan are somewhat different in shape and very similar in size, approximately 110-130 cm and slightly smaller. The easiest difference between the two is that the swan is yellow on the base of its mouth and follows both sides to the bottom of its nostrils, while the swans are black on the side, with the yellow spots on both sides stretching over its nostrils. In general, the swan's mouth is more yellow and the swan's mouth is more black. Nasal swans, white colour, long neck, red mouth, 125-150 cm long. It is also a clear sign of the difference between two other swans because of the name given to the forehead of a sudden black tumor。
The swan prefers to dwell in the rich lakes, swamps and rivers of water, feeding on the roots and seeds of aquatic plants, as well as on a small amount of insect snails and small fish. Every march, thousands of swans migrate long distances to make short stopovers in covered wetlands to supply them. The geese play freely in the water, sometimes with their heads down and their feathers down, while they sing loud songs. They are elves that leaping, and they exclaim that the creator is so partial. The geese are highly capable of flying up to 9 km and even above everest. "hand your head up to heaven, and ride with you." the poems of the famous domde poet, dufut, are very graphic and use the swan to express their noble feelings。
Another important reason that the swans have been praised for is their loyalty to love, which strictly adheres to the “monogamy”. In particular, during the reproductive season of may each year, male and female swans turn and hatch, entangled and entangled. When in danger, the male swan rises up and changes to the way he used to be, in the form of a brave “soldier of love”. If one of the swans dies, the other also chooses to be alone and to die for it. As a result, swans are seen by humanity as a symbol of loyalty to love。
The swan is a noble bird that gives people a pleasant enjoyment. If the beauty of living in harmony with nature is to be preserved forever, it requires caring for the ecological environment and preserving biodiversity. It all takes you and me to work together。
Contribution: natural section
