Common Yellow Wood Sorrel (native)
False Solomon's Seal (native)
Dusted Skipper (note white eye ring)
Red Columbine (native)
Fringe Tree (native)
Common Star-grass (native)
More work required. Too tired to do it tonight!
Not sure about the ID of this one. One of the guys on the walk suggested it was Sundrop, in the mallow family. I can't find anything like that in Go Botany. It looks closest to Yellow Horn-Poppy, but more research is required.
curious Northern Mockingbird
Juvenal's Duskywing (I hope)
Red Sand-Spurry (non-native)