Engraved drawing of the White-tailed Ptarmigan (Lagopus leucura), from the book 'Birds and nature in natural colors' by A. W, 1913. Mumford. Courtesy Internet Archive. ()This image was created from the Internet Archive Books Images project (https://www.flickr.com/photos/internetarchivebookimages/) through a collaboration between the Internet Archive and Gado Images. The descriptions and keywords from this image were created by Gado Images' professional research team.