Eastern Tiger Swallowtail (missing some wings on both sides)
Pipevine Swallowtail (look at that blue in the sunlight!)
This is a blurry shot of the same Giant Swallowtail in the photo above. I chased this butterfly around the garden for several minutes because I wanted to get a good photo for identification. It seemed to be very aware of my presence and eventually tired of me and left the yard. Doesn't it look ghostly?