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 December 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.
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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).