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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.
http://unitedplantsavers.org/
North American Waterfowl Population Surveys
Information about U.S.-Canada-Mexico cooperative efforts to monitor populations and breeding habitats for ducks, geese and swans.
http://waterfowlsurveys.fws.gov/
Butterflies and Moths of North America
Comprehensive guide to the Lepidoptera of the United States and northern Mexico, including a photographic identification guide, county checklists, and distribution maps.
http://www.butterfliesandmoths.org/
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2006