In case there is any confusion, birds don't come to pishing because it
sounds like a predator; it sounds like an alarm call from a bird that has
detected a predator. Birds come close because it is greatly to their
advantage to know where their potential predators are.

Dennis Paulson phone: (206) 756-3798
Slater Museum of Natural History fax: (206) 756-3352
University of Puget Sound e-mail: dpaulson at ups.edu
Tacoma, WA 98416