The Freeway Bureau yesterday temporarily closed the Formosa Freeway’s (Freeway No. 3) outer lane and shoulder in Yunlin County after detecting a massive migration of purple crow butterflies.
The number of purple crow butterflies flying across the freeway section in the county’s Linnei Township (林內) reached 250 per minute at about 9am, Taiwan Purple Crow Butterfly Ecological Preservation Association deputy chairman Chen Jui-hsiang (陳瑞祥) said, adding that the bureau closed the outer lane and shoulder in the section (251K to 253K milestone) at 9:20am.
The maximum number of purple crow butterflies recorded yesterday morning exceeded 687 per minute, the association said.
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PROTECTING WILDLIFE: While Yunlin moved to protect purple crow butterfly crossings, Taipei warned against hurting or killing Formosan magpies and destroying their nestsBy Shelley Shan / Staff reporter