The following wildflower ID's courtesy of Roger Tory Peterson's Peterson's First Guides: Wildflowers.
Dame's rocket--thought it was a phlox, but it only has four petals
Common blue violet
Wild parsnip or Golden Alexander? I can't tell.
Is this a tiger swallowtail?
With apologies to Alice Walker, in my mind, cows make a landscape more beautiful.
Eastern bluebird--I was too slow to snap her while she was feeding her babies, then she flew up to the wire. I waited, but she was more patient than I, and I figured she might be too shy to feed them with me watching so I drove on.