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![Eastern Black Swallowtail Butterfly male (Papilio polyxenes asterius) on Yarrow (Achillea millefolium) in backyard garden. Summer. Nova Scotia, Canada.](https://www.leesonphoto.com/img-get/I0000ZEq19FV2Xoo/s/600/600/TK8-0605218.jpg)
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Eastern Black Swallowtail Butterfly male (Papilio polyxenes asterius) on Yarrow (Achillea millefolium) in backyard garden. Summer. Nova Scotia, Canada.
Thomas Kitchin & Victoria Hurst/leesonphoto. All Rights Reserved.
Swallowtail, Swallowtails, Black Swallowtail, Black Swallowtails, Eastern Black Swallowtail, Eastern Black Swallowtails, male, males, Papilio polyxenes asterius, Butterfly, Butterflies, Insect, Insects, backyard animal, backyard animals, back yard animal, back yard animals, backyard wildlife, back yard wildlife, fauna, North American wildlife, Backyard, Back Yard, Garden, Gardens, North America, Kitchin, Hurst, flower, flowers, summer, wing, wings, winged, yarrow, Horizontal