Hummingbird and Butterfly Gardening: Daily Butterflies page 4, 1 by Illoquin

Illoquin wrote:
I got this guy at a meeting on peonies -- he was eithin the folds of one of the flowers. I brought him home and put him on parselym but he's still looking for somehting else.

I thought it was a Swallowtail, what is it? Can you tell? There is a faint yellow line lengthwise around his midrib and I thought I saw very faint markings of eyes near his tail.

Can you tell what he is by the very bad picture?
Suzy