English: author's photograph of some of the overwintering monarch butterflies in a preserve outside of Angangueo. One tree is completely covered in butterflies.
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Original uploader was Bfpage at en.wikipedia, 16 දෙසැම්බර් 2009 (original upload date)
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2009-12-16 01:30 Bfpage 640×480× (115315 bytes) author's photograph of some of the overwintering monarch butterflies in a preserve outside of Angangueo. One tree is completely covered in butterflies.
Papillons Monarque hivernant en situation de diapause regroupée sur des arbres oyamel (conifères). L’un des arbres est complètement recouvert de papillons (réserve d’Angangueo, région de Michoacán, Mexique).