Parents looked closely and children's eyes widened as Northern California Bats' founder Corky Quirk used two live bats to educate in Old Sacramento Saturday. Quirk brought a Mexican Free-Tailed bat and Big Brown bat to Trail Mix, a store selling outdoor merchandise and projects for children and adults. About 40 children, parents and adults attended the event, and about 20 more trickled in after to see the bats. "It went really well with standing room only," Quirk said. "People were really quiet, which really surprised me, but they stayed a long time, which says something to me." Quirk said she wanted to help people understand the importance of bats, what they do for the environment and