White butterflies are probing the Sweetclover–but only the few white flowered ones–out where the deer take their rest. Those white blossoms are as fragrant or even more fragrant than are the yellow.
An all gray, very large Sphinx Moth is about, with a row of amber spots running the length of both sides of its abdomen. There are several species with these markings, though I think this must be the common Tobacco Hawk Moth, that scourge of tomato growers everywhere.