The Problem It isn’t only Cubs fans who love Wrigley Field. “Pigeons like to roost on the trusses that support the upper deck,” said Paul Rathje, director of stadium operations at Wrigley Field for the last six years. “This causes problems for the people seated below.” Besides the lure of roosting in the structural beams, the pigeons are naturally attracted to the food purchased by the crowds of fans who fill the stands – a bird’s delight; a stadium director’s horror. During the prior season, Rathje tried a few tricks of his own to defeat the pigeons but with no success. The Result Connelly worked cooperatively with the union electricians on staff at Wrigley Field to devise a protocol for smooth supervision and installation. The big day came in late May 2003. When the Bird-X units were turned on, “The birds flapped out,” Rathje says. “About 90 percent of the birds left for good,” says Connelly. It wasn’t a total elimination, both men agree, but it forced the bird problem to fall within an acceptable tolerance range. That was the goal, Connelly says, noting that realistic expectations and budgetary constraints are always factors in choosing solutions for large facilities. Operations Director Rathje has advice for other facility managers: Consider various bird-deterrence alternatives, depending on the facility’s architecture, where the birds roost, and the expanse of the space affected. Connelly agrees. “Then base your decision on the limits of your budget, the realities of the time needed to proper installation, and your tolerance level for effectiveness.” He said that a 100 percent solution can be prohibitively expensive and often is not necessary.