Due to the drought, the return of the purple butterfly to the north was delayed by about half a month this year, and the advance troops have already arrived in Yunlin Forest.

(Photo by reporter Huang Shuli)

[Reporter Huang Shuli/Yunlin Report] Affected by several months of drought, the return of the purple butterfly to the north this year has been delayed by about half a month.

Chen Ruixiang, vice-chairman of the Taiwan Purple Butterfly Ecological Association, said that three consecutive days of large migrations of purple butterflies have been observed in the south. Some advance troops have arrived in Yunlin Forest in the past few days. It is expected that a large number of purple butterflies will pass through the border next week.

The purple butterfly will fly to the forest in March and April every year and return north across the Zhuoshui River. Because it appears around the Qingming Festival, the villagers called it "Qingming butterfly" in the early years.

The Yunlin County Government and the Linnei Township Office jointly hold the "Meet in the Linnei Butterfly Appreciation" purple spot butterfly season event, which will be held on March 26, April 1 and 2.

Township head Liu Ziyan said that this year, due to the construction of the Taipower project in the contact section, the event location was changed to Linnei Zhidie Ecological Landscape Park (formerly Baolong Park).

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Chen Ruixiang pointed out that at the beginning of March last year, a large number of purple spotted butterflies arrived in the forest. This year, due to the lack of rain for too long, the environment is too dry, and the temperature difference between day and night was large a while ago. To a large number of purple butterfly migration.

Chen Ruixiang said that in the past two days, the volunteers of the association have been observing at the mouth of the forest. The advance troops have arrived in the forest. Yesterday, there were up to 44 per minute, and there were more than 3,800 throughout the day. There were more than 1,000 the day before yesterday. According to the weather forecast The weather will be bad on Sunday (26th). It is expected that the weather will improve next week, and there should be a large number of purple butterfly butterflies passing through the forest.

Chen Ruixiang said that according to the observation data of previous years, due to the drought this year, the migration time will be delayed by half a month, and the number will be slightly reduced. For example, the number of butterflies in the severe drought of the year before last was only more than 90,000. Last year, when the weather was good, there were more than 280,000 butterflies. Next week It is the focus of observation, and the quantity remains to be seen.

To cope with the migration of the purple butterfly, the High-Tech Bureau also set up a 4.5-meter-high and one-kilometer-long protective net on the northbound section of National Highway 3 from 252K to 251K this year. When the number of butterflies reaches 250 per minute, the outer lane will be closed to ensure the safety of the purple butterfly. Fly over the national highway.

Chen Ruixiang emphasized that more than 280,000 birds flew over last year. If there were no measures to "give way to butterflies on national highways", the number of roadkills may reach as high as 9,000. Last year, the number of roadkills was only 700.

Please also use passers-by to cooperate.

Rinnai Purple Spotted Butterfly Season will be held this Sunday, March 26.

(Photo by reporter Huang Shuli)

The National Highway gives way to the butterflies, and the National Industry Bureau has erected protective nets on Section 252 to 251 of National Highway 3 to the north, so that the purple spotted butterfly can safely fly over the national highway and return north.

(Photo by reporter Huang Shuli)

Due to the drought, the return of the purple butterfly to the north was delayed by about half a month this year, and the advance troops have already arrived in Yunlin Forest.

(Photo by reporter Huang Shuli)