Canadian Tiger Swallowtail

A male Canadian Tiger Swallowtail (Papilio canadensis) puddling for the sodium in road salt. I snapped this photograph lying on my stomach while humming Bach off-key. Photographing butterflies keeps a person nimble, patient, and not overly preoccupied with tidy clothes. 
I walked over 13 km today, mostly in a forest. A whirlwind of golden trembling aspen leaves swirled around me, like a flurry of tiger swallowtails.