Jim Pfitzer spent a night in Aldo Leopold’s shack last October as part of his research on Leopold's life. Now Pfitzer has built a replica of that shack for his play, Aldo Leopold—A Standard of Change. Pfitzer portrays the early 20th-century naturalist in this one-man stage production, which he'll perform on Thursday, May 31st at Barking Legs Theater. Butch Ross will open the show with an acoustic set of new songs. Pfitzer will also travel to Bonaroo for two performances the following weekend.