identification

A comprehensive supplement that introduces the GISS method of identification, which uses such characteristics as size, shape, behavior, flight pattern, vocalization, and other clues to distinguish various species of birds.

Profiles more than 223 species of wild orchids which can be found throughout North America, providing identification, full distribution range, recenty synonyms, and all subspecies' varietal and forma information.

Describes 1,492 wildflowers found from British Columbia to Baja California, from the Rocky Mountains to the Pacific Ocean, including names, family, habitat, and flowering season, with illustrations.

A guide to rabbits that provides information on the history, behavior, breeding, and showing of rabbits; and profiles forty-seven breeds.

Presents a comprehensive field guide to two hundred twenty-seven of the most common saltwater fish, and includes full-color illustrations and information on identification, size, habitat, feeding habits, and more.

A directory to 1,200 individual shells, organized by class, family, genus, and species. Includes a glossary, bibliography, and a listing of clubs, societies, and museums.

Explores 515 of the most threatened birds on Earth by continent, including information on their physical characteristics, behavior, habitat, and the threats each species faces. Features full color photographs, including a number that are the first published images of certain species, and illustrations for seventy-five species of which no known photos exist.

Contains color illustrations and descriptions of one hundred songbirds found in North America, provides information about each one's song, and includes distribution maps, as well as a CD.