In the first two pictures we have a nice Northern Pearly-eye (Enodia anthedon). This butterfly’s coloring and texture are very smooth. We only had this glimpse of him before he fluttered back into the trees.
The butterfly in the last two pictures is probably a Compton Tortoiseshell (Nymphalis vaualbum). It seems most of the Tortoiseshell butterflies are unique to Europe and Northern Africa. The Comptons do appear in North America however. Something has tattered his wings but his color is still quite bright.
(Click any butterfly picture to open the gallery for a closer look!)