A steady roar sounded in the woods. The tree canopy shimmered with traveling fixtures of light that bounced off transparent wings. I stood outside and took in the sights and sounds. Then I noticed someone on my shoulder.
Certain locations in Illinois are anticipating the springtime emergence of two periodical cicada broods. Brood XIII emerges once every 17 years, and Brood XIX emerges once every 13 years. This year they emerge together.
