Volunteers with the Central Arizona Butterfly Association invite participants to join their 8th annual Autumn census of all the butterflies they can find at Boyce Thompson Arboretum on Saturday, Sept. 6; and a few others spots at the east edge of Pinal County. Similiar to the Christmas Bird County in December, the count circle has a 15-mile diameter centered in Superior, AZ, and the goal is a one-day census of all butterflies seen within; Arboretum daily admission of $10 is required for any non-members counting at BTA. Volunteer participants will be assigned to a team leader and will be working a part of the count circle area. To sign up as a volunteer, email Marceline VandeWater. Participants plan to meet for lunch at Jade Grill restaurant in Superior for an informal $10 buffet served family style (or bring your own) and to relax, chat and exchange preliminary findings of the tally. Read more complete event details at cazba.org.