In honor of the return of the Myotis veliver bat colony to the caverns, all things bat-related are celebrated from 10:30 a.m. to 4 p.m., Saturday, April 13. At 11 a.m., Ted Fleming presents "The Columnar Cactus-Nectar Bat Connection. At noon, Sarah Kirk presents "Bats of Arizona." At 1:30 p.m., Yar Petryszyn presents "Bat Specimens from the UA Mammal Collection." At 2:30 p.m., Ronnie Sidner presents "Bats of Kartchner Caverns." Children's activities also take place throughout the day. Cave tours require advance reservations, and tickets must be claimed at least one hour in advance. Visit azstateparks.com/parks/kaca/
for reservations and more information.