I figured out what they are eating. They are sucking or eating something at the base of the flowers where they attach to the stem. So then the flowers fall off. The gaura -- I've seen maybe three blooms on it, and elsewhere all strong foliage and withered flowers. The African Foxglove just drops its flowers on the ground.
So I am hoping the hummingbird that showed up this morning (first one,yay!) will eat some stilt bugs! Or somebody will.
