Every year the North American Butterfly Association sponsors a nation-wide Butterfly Count on or about the 4th of July.

How cool it that?! So get out your binoculars and watch butterflies.
I got the message from -
http://www.catskillnativenursery.com/Butterfly%20Day.htmChecking the North American Butterfly Association site - NABA Butterfly Counts-
http://www.naba.org/counts.htmlThe NABA Butterfly Counts is an ongoing program of NABA to census the butterflies of North America (United States, Canada and partially Mexico) and to publish the results. Volunteer participants select a count area with a 15-mile diameter and conduct a one-day census of all butterflies sighted within that circle. The counts are usually held in the few weeks before or after July 4th in the U.S., July 1st in Canada and September 16th in Mexico. Maps give the location and compiler information for the individual counts. Highlights from the 2003 counts, highlights from the 2002 counts, and highlights from the 2001 counts may be found on on this web site. If you are interested in participating in your area in 2006, please contact the compiler listed and join that count for a day of fascinating butterfly counting. If there is no count in your area, you may start your own if you know how to identify the butterflies. Otherwise, inspire a nature center or butterfly club to start one for you! For more information on the count program and how to conduct a count, please write:
NABA Butterfly Counts
2533 Mc Cart
Fort Worth, TX 76110
or email NABA at naba at naba.org
But there is also - NABA Memorial Day/Victoria Day Butterfly Counts -
http://www.naba.org/memvic.htmlEven if one doesn't participate in the Counts, one can still watch butterflies.
http://www.naba.org/
http://www.nababis.org/servlets/Sightings 
Far out!