• 48 million U.S. birders age 16 and older

• 50 is the age of average birder, who is most likely a woman with above-average income and education

• 55-plus is the age of most birders

• Whites are three times more likely to be birders than Hispanics, Asians or African-Americans

• People are more likely to watch birds in small cities and rural areas

• Montana has the highest proportion of residents who watch birds, at 40 percent. Maine, Vermont, Minnesota (33 percent) and Iowa are next.

Source: 2006 U.S. Department of the Interior National Survey of Fishing, Hunting and Wildlife-Associated Recreation