See also:

• Recreation: Birding: North America  (1,066)
• Reference: Museums: Science  (556)
• Regional: Polar Regions: Arctic: Science and Environment  (43)
• Science  (108,650)
• Science: Environment  (6,243)
• Society: Issues: Environment  (2,425)
• Society: Issues: Environment: Conservation and Endangered Species: Regional: North America  (186)
• Society: Issues: Environment: Organizations: Regional: North America  (42)

• Butterflies and Moths of North America - Searchable database of records in the United States and Mexico. Includes distribution maps of counties in which occurrence of particular species has been verified, accounts, checklists and photographs.
• North American Waterfowl Population Surveys - Information about U.S.-Canada-Mexico cooperative efforts to monitor populations and breeding habitats for ducks, geese and swans.
• United Plant Savers - Works to protect native medicinal plants of the United States and Canada and their native habitat while ensuring an abundant renewable supply of medicinal plants for future generations. Forum and newsletters.