Search results with tag "A demographic and economic analysis"

U.S. Fish & Wildlife Service Birding in the United States ...

4 Birding in the United States: A Demographic and Economic Analysis Birders In 2011, there were 47 million birdwatchers (birders), 16 years of age and older, in the United States …

  Economic, United, States, Analysis, Demographic, United states, Fish, A demographic and economic analysis