The victims were mainly due to inadequate preparation, irregular operation and lack of protective measures and isolation work. At present, the Henan Wild Bird Observation Society has been criticized and educated, and it has been reported to the higher authorities, and lessons will be learned in the near future. Putting a collar on swans is a common monitoring method in related scientific research. In the online video, the collar may be tight because of fluffy feathers, but it is actually loose and can move up and down the swan's neck without affecting eating.
Swan is a beautiful waterfowl. They have elegant and slender necks. When they slide in the water, they usually have a very beautiful neck? s？ Formally, it looks noble and dignified, light and leisurely, and brings people infinite beautiful reverie. Swan inhabits lakes and swamps and migrates to the south in winter to find food. Swan has a beautiful figure, a long neck, a strong body and big feet. When it slides in the water, it looks solemn. When it flies, its neck stretches forward and its wings flap slowly. ? Why is the goose's neck so long? Its adaptation to finding food under the water is the result of evolution. At the same time, the goose is also a very large waterfowl, so it needs to keep balance and a very long neck when flying.
Swan mainly eats things in water, including fish, shrimp, shellfish, algae, aquatic plants and so on. But their bodies can usually only float on the water and bury their heads underwater for food. In their natural evolution, it is easier to feed and survive only if their necks are long enough, which is the same as giraffes' evolution of long necks.