Birdwatchers No Featherweights in Contributions to Economy
"A new report released today by the U.S. Fish and Wildlife Service shows one of every five Americans watches birds, and in doing so, birdwatchers contributed $36 billion to the U.S. economy in 2006, the most recent year for which economic data are available. The report – Birding in the United States: A Demographic and Economic Analysis –shows that total participation in birdwatching is strong at 48 million, and remaining at a steady 20 percent of the U.S. population since 1996.

Participation rates vary, but are generally greater in the northern half of the country. The five top states with the greatest birding participation rates include Montana (40 percent), Maine (39 percent), Vermont (38 percent), Minnesota (33 percent) and Iowa (33 percent)..."