The butterfly is in the middle of this photo above the rusty brown curled leaf. It is a tiny bit larger than an Eastern Tailed-blue or a Summer Azure and blends in with the mulch on the path. Both Jackie and I took a half-dozen photos. None of them were in focus. The butterfly constantly flitted from one spot to another. On this photo, as we looked at it on Phil's camera screen, we could see the black spots outlined in white on the ventral (bottom) side of the hind wing.
Ruth spotted the tiny butterfly. She has been looking for it. It has an interesting life cycle. Its larvae (caterpillars) eat Wooly aphids (Family-Aphididae). This makes it North America's only carniverous butterfly. The adult butterflies feed on the honeydew exuded by the aphids. The butterflies are often found along stream corridors and other moist places and on nearby trails where they sip for minerals in damp earth and puddles.
Below are photos of other butterflies we saw.
We didn't get a photo of the Peck's skipper.
But, someone spotted this walking stick and we did get photos of it.