Migratory birds “home”, invite you “escort”!More than 400,000 migratory birds from Dongting Lake return north for spring

2022-06-21 0 By

Sanxiang metropolis daily · Huasheng online April 6 (all media reporter Li Chenghui map/Song Yucheng) spring to the north, autumn to the south.It’s spring, and hundreds of millions of migratory birds around the world have left their wintering grounds and returned to their breeding grounds.Dongting Lake is one of the starting points for migratory birds to return north.This winter, more than 400,000 migratory birds spend nearly half a year of warm weather here.Most of them are already on their way home.The first week of April every year is my province “bird-loving week” publicity week.This year is the 41st “Bird-loving Week” in our province, with the theme of “Protecting the spirit of the blue sky and sharing the beautiful homeland”.Forestry department appeals, when migratory birds move north, we hand in hand “escort”.(white spoonbill) hunan rescued cygnet, has lived in Inner Mongolia open new April 6 in the afternoon, east dongting lake national nature reserve clock XinZha waters, more than 30 playing, playing little swan in the lake, the cheerful songs, they sometimes leisurely swim in the water, turn on, and sometimes fly hovering in midair.What these cygnets may not realize is that many of their young friends have already gone home.Over the past winter, 4,000 cygnets wintered in Dongting Lake, and two of the “little stars”, named Yueyue and Pingping, were rescued after being trapped with injuries.On November 23 last year, Hu Zhenghua, a shrimp farmer in Qinggang Village, Quyuan District, Yueyang, came to the pond to feed shrimp, and accidentally found the severely injured cygnet Yueyue. He did not dare to come forward to alarm, but tried to scatter some food in the hope that it would recover.After a period of time, cygnet month is still not improved.He quickly contacted the forestry department to carry out professional treatment.Flat and month encounter similar.After professional treatment, the two cygnets were released.But before they are released, they are fitted with collar bird trackers, which allow for quick rescue and real-time data transmission of migratory birds’ behaviour.According to data sent back, two cygnets have arrived in Bayannur region of Inner Mongolia and started a new life.The bar-tailed godwit can fly more than 10,000 kilometers at a time, said a tracker attached to the godwit usually records its behavior every hour, including latitude and longitude, amount of activity, speed, altitude and temperature.”The basic principle of tracking is not to interfere with the survival and movement of birds.”Zhou Libo, director of the provincial Animal Internet of Things Engineering technology Research Center, introduced that China’s bird tracker monitoring capacity has reached the world’s advanced level, standby time of more than 5 years, monitoring data update time can be calculated in seconds, the lightest weight can do 3 to 5 grams.The returned data can reveal the migration behavior of migratory birds more scientifically and accurately.The most continuously flying bird ever detected is the bar-tailed godwit.As it moves south, it can fly more than 10,000 kilometers for 11 days from Alaska in the United States to New Zealand.They can fly north to dandong, part of our country, and stop there, all at once, and then fly straight from Dandong to Alaska to breed.Monitoring data show that the bar-tailed godwit generally gains a lot of energy before takeoff and has a high percentage of body fat, especially belly fat, which is its “fuel reserve” for day and night flight.Bar-tailed godwits lose a third of their body weight after being tracked for long, nonstop flights.And bar-tailed godwits have been recorded in Dongting Lake.Most of the migratory birds have already returned to the north and will “return home” in mid-April at the latest. “Since mid-March, some migratory birds have started their journey back to the north.”Song Yucheng, a researcher at the East Dongting Lake National Nature Reserve, told sanxiang Metropolis Daily that 40 surveillance stations in the reserve showed that there were no birds in many waters, indicating that the migration was nearing an end and that the remaining water birds, such as cygnets, cranes and striped ducks, would migrate by mid-April at the latest.With the pace of migratory birds, “Psy” Tan Dunshuang from the county to live back to Mengxi County Peng Factory.For 24 years, tan Dun and Tan Dun both come to escort the migratory birds on time during their flight season.The relevant person in charge of the provincial forestry bureau introduced that the migratory birds in our province mainly move along the Xuefeng Mountains, Luoxiao Mountains and Wuling mountains three routes, nanling is an important geographical barrier for the migration of birds from north to south, Dongting Lake is an important habitat for migratory birds over winter.”In terms of global migration routes, our province belongs to the East Asia-Australasia migration route.Sanxiang City Daily reporter learned that in recent years, the province has effectively protected birds through patrolling, law enforcement strikes, habitat protection and restoration, and the number of species and increasing.At present, there are 504 species of birds in the province, 110 species of birds under state key protection, including the Chinese merganser, black stork, pheasant, golden eagle and many other rare and endangered birds.”At the end of 2021, the provincial Forestry Bureau organized the first simultaneous survey of waterbirds in Dongting Lake, recording 404,000 waterbirds of 74 species and finding 140 black storks, which are the largest population of black storks observed in China.Among them, 298,000 waterbirds of 54 species were recorded in east Dongting Lake National Nature Reserve, West Dongting Lake National Nature Reserve, South Dongting Lake provincial Nature Reserve and Hengling Lake Provincial Nature Reserve, up 3.4% year-on-year.The number of Chinese mergansers, a first-level national key protected wild animal, increased from 54 in 2015 to 136 in Hupingshan National Nature Reserve.The number of white-necked pheasant in Baiyun Mountain National Nature Reserve has increased from 300 in 2015 to more than 500.According to previous experience, the flock of Chinese mergansers will set off in batches at the end of April to return to Northeast China and Russia to breed, according to bird monitors at The Huopingshan National Nature Reserve.