Joyce Walton Spicebush Swallowtail

NWF   |   April 27, 2012

The Spicebush Swallowtail is a common black swallowtail butterfly found in North America, also known as the Green-Clouded butterfly. The swallowtails are unique in that even while feeding, they continue to flutter their wings. (Photo: Joyce Walton)

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