monarch butterfly
US /ˈmɑː.nɑːrk ˈbʌt.ər.flaɪ/
UK /ˈmɑː.nɑːrk ˈbʌt.ər.flaɪ/

1.
papillon monarque
a large migratory butterfly with orange and black wings, native to North and South America, that is known for its long-distance annual migration
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The monarch butterfly migrates thousands of miles each year.
Le papillon monarque migre des milliers de kilomètres chaque année.
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We saw many monarch butterflies fluttering in the garden.
Nous avons vu de nombreux papillons monarques voltiger dans le jardin.