Book excerpt: Birds of mystery, intelligence, and curiosity, ravens and crows have fascinated humans for untold centuries. In this first in a series of beautifully illustrated books that celebrate the power and beauty of the animal kingdom, Catherine Feher-Elston considers the raven in the contexts of mythology, folklore, history, and science. From the raven's role as trickster in Native American religion to his ability to captivate ornithologists and biologists with his intriguing behaviors, Ravensong pays tribute to the elegance and grandeur of two of America's most ubiquitous avian species.