Monarchs! We have had several bright Monarch butterflies fluttering around the garden and feeding on a number of flowers. The coneflowers closest to the Milkweeds seem popular. We suspect that these are 'our' Monarchs, though we haven't seen any actually undergo the transformation from caterpillar to butterfly. We certainly saw enough caterpillars after leaving a few Milkweed to grow in front of the window.
Mrs. F.G. is the photographer and I don't think we've ever had better close-ups of Monarchs.