The Ornithology of Illinois Volume 1 is a book written by Robert Ridgway in 1889. It is a comprehensive guide to the birds of Illinois, containing a descriptive catalogue of all the species found in the state, as well as information on their habitats, behavior, and distribution. The book also includes a section on economic ornithology, which explores the practical uses of birds, such as for food, feathers, and hunting. Ridgway was a renowned ornithologist...