It looks like spring, but it isn't. Every Washington spring we fall helplessly in love with Kwanzan cherry blossoms. These ornamental cherry trees burst into clouds of pink floral frill, and for a brief time, every manicured roadside and front yard takes on the look of a botanical garden. It's truly beautiful. It's tradition. It's also, I argue, a quiet catastrophe for the very creatures that make spring possible. Now, personal experience is important. Before you continue reading, if you...