I hooked my iPhone to portable speakers, set them outside, and played recorded crow calls, watching from indoors. The sky filled with two dozen squawking crows coming from all directions. After 15 minutes they wised up and left. Next time, I will add peanuts as incentives and eventually work toward their coming when I call them by my voice.
Causes Amy Tan Supports
Self Help for the Elderly
Squaw Valley Community of Writers
San Francisco Symphony
San Francisco Opera