The Ornithology of Illinois V1: Descriptive Catalogue, Economic Ornithology (1889) is a book written by Robert Ridgway. It is a comprehensive guide to the birds of Illinois, containing detailed descriptions of each species, along with their habitats, behaviors, and other relevant information. The book also includes an economic section that discusses the usefulness of birds to humans, such as their roles in pest control and as sources of food and feathers...