Most of our plants are pollinated by bees. Approximately 50% of the managed bee population has been killed off in the last 10 years and colony collapse disorder continues to endanger our honey bee population. Along with bees, butterflies, beetles, birds and some mammals are also pollinators. This lightweight, waterproof and easy to use guide can be used at home or in the field. Beautifully illustrated and impeccably researched, Waterford Press guides have sold over 5 million copies. Made in the USA