North American Butterfly Association
Princeton - our backyard
Mercer County, NJ
We planted rue for the first time in our garden and have been rewarded this summer with a Giant Swallowtail caterpillar amongst the many many black swallowtail caterpillars who also find it a wonderful host plant. It truly does look like a “bird dropping” but one that moves and keeps getting bigger.
Giant Swallowtail caterpillar
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