According to media reports, a blogger found hundreds of wild "ducks" dead on the ice on the Hunhe near the Xinlibao Interchange in Shenyang, Liaoning. Through the photos taken on the scene, it can be seen that the dead duck's neck was light brown and yellow, and its whole body was red and brown, looking similar to the Chinese three-protected animal red duck.
red mahjong
red mahjong belongs to , , genus , genus , and genus . Its body shape is slightly larger than , the body length can grow to 51-68 cm, and the weight can reach about 3 jin.
mainly lives in river estuaries, lakes, ponds, nearby swamps, beaches, wastelands, sparse plains and farmlands. They especially like lake areas on the plains, mainly living in inland freshwater. It mainly lives on the coast of Mediterranean , central and eastern Asia, northwestern Africa, and southeastern Europe. During winter, it will be in Indochina Peninsula , India, Thailand, Myanmar, Japan, Korean Peninsula and other places.
Red duck's food mainly includes seeds, buds and leaves of aquatic plants, crop seedlings and other plants, and sometimes they also eat insects, small fish, frogs, and crustaceans.
Although it is a non-hazardous species in " Red List of Endangered Species of the World Union for Conservation of Nature" (IUCN) 2016 ver 3.1, it is included in the " National Protection of Terrestrial Wild Animals with Benefits or Important Economic and Scientific Research Value of the National Protection of the China State Forestry Administration on August 1, 2000, it is a three-protected animal. Although the red ducks are not dangerous, their population is not large. As of 2012 statistics, the total population in the world was only about 30,000.
Why did the red duck appear in Liaoning area without flying away?
Red Mahjong is a migratory bird. From the end of October to the beginning of November every year, it migrates from breeding ground to overwintering ground in groups, and then from the early March to mid-March of the following year, it must migrate from the overwintering ground to the breeding ground in groups from the overwintering ground to the breeding ground in groups. In winter in my country, the red duck will choose to spend the winter in the middle and lower reaches of the Yangtze River with relatively mild temperatures, and in summer, it will return to the Northeast breeding area.
According to staff at Shenyang Wildlife Rescue Station, the red ducks go to the Shenyang area every year. With the improvement of the environment in recent years, some red ducks will spend the winter in Shenyang. Now it is mid-December, and the time for the red ducks to migrate has passed. The dead group of red ducks should have stayed in the local area for winter, but unexpectedly, they encountered an unexpected accident.
According to wildlife rescue experts, it is strange that this batch of red ducks did not fly away, because under normal circumstances, the red ducks would fly to a warmer place in the south. The weather in Shenyang is colder. According to the principle, the red ducks would fly away. They believed that the failure to fly away may be because there is sufficient food in Shenyang, or that someone often feeds them.
How did the red duck die?
The common causes of such a large number of red ducks die at the same time are as follows:
1, Avian influenza . Avian influenza is one of the common diseases that cause short-term large-scale deaths of poultry and wild birds. However, according to a notice issued by Shenyang Municipal Natural Resources Bureau , on the morning of December 15, avian influenza virus was not detected in the samples sent for testing, which can rule out the possibility of avian influenza.
However, the harm of avian influenza cannot be ignored. Avian influenza is a type of influenza, which is a variety of syndromes caused by the avian influenza virus infecting poultry, ranging from asymptomatic infections, respiratory diseases and egg laying rates to serious systemic diseases with a mortality rate of nearly 100%.
The natural hosts of avian influenza include poultry and wild birds, and there are more influenza viruses isolated from ducks than any other bird.
According to statistics from December 2 to December 9, Belgium occurred in Belgium , 11 wild birds and 1 poultry occurred in Italy, 8 wild birds and 20 poultry occurred in France, 1 wild birds and 1 wild birds in Sweden , 1 wild birds in Venezuela , 4 poultry occurred in Canada, 2 poultry in Germany, 14 wild birds and 13 poultry in the United States, 7 poultry in Japan, 4 wild birds in Spain, 1 wild birds in Poland and Switzerland HTML, 1 wild birds in 2 Peru and Czech , 2 poultry in South Africa, 18 poultry in Hungary.
2. The temperature dropped sharply and I was frozen to death. It is understood that a few days before the death of the Red Ma Duck was discovered, it was cooling and snowing in Shenyang. Although the red duck has feathers and has a certain ability to resist cold, it is a migratory bird and is not strong in resistance to the cold . It is understood that the optimal growth temperature of the red mahjong is around 13-20 degrees Celsius. Although the red mahjong can spend the winter outside at minus one or two degrees Celsius, it is necessary to provide a nest for the duck as a residence to keep it warm. The current local temperature in Shenyang is -20℃~-6℃, which may exceed the tolerance of the red mahjong, and the red mahjong can be frozen to death in large quantities.
3. Short of food. This can be basically ruled out at present. According to media reports, some experts found after a simple dissection that there were a lot of corn kernels in the dead Red Madai sac, and corn kernels were also found at the scene of Red Madai's death. In addition, some citizens prefer red mahjong. When it snows, considering that the red mahjong doesn’t eat it, local citizens also have the possibility of feeding corn, so the lack of food leads to death.
4. Poisoning. Poisoning is the most likely at present. In September 2020, the National Forestry and Grassland Administration issued the " Notice on Standardizing the Management Scope of Classification and Management of Wild Animals for the Prevention", which stipulates that breeding activities for the purpose of eating are prohibited for the animal. It was used to be cultivated and eaten, but now it cannot be cultivated. It is impossible to rule out that some illegal personnel use poisoned corn kernels to poison the red duck and then pick it up for eating.
