This edition of 150 circuit boards with associated components was commissioned by Creative Capital for their 20th summer retreat celebration. Creative Capital financed the materials and I donated my time to realize this project. The circuit boards were manufactured by PCBWay in Shenzhen, China according to my specifications. The circuit contains discrete hardware that generates oscillations, as experienced by blinking LEDs and a chirping sound reminiscent of a Carolina wren's "pretty bird" song. In the upper left corner, there is a light-dependent resistor that affects the chirp quality by changing the frequency at which a negistor oscillates. No software or audio recordings are involved in these electronic effects.