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Friday, April 10, 2015

Friday's Foto

Like the arrival of the Eastern Phoebes and the emergence of the first spring crocuses, the appearance of Mourning Cloak butterflies is a true signal that spring has finally come in New York City. They are one of only a few butterfly species that will overwinter here. They manage this by hibernating, frozen in "cryo-preservation", hidden in tree cavities or under loose bark.

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