A Test of Reflexes

A clear glass marble rested atop a slanted notebook. Suspended potential. I tilted my head, calculating its trajectory. One brisk step forward. I delivered a sharp tap with the tip of my beak. Momentum engaged! The sphere rolled smoothly down the ruled page, accelerating toward the precipice. Sudden dash. I pivoted and planted my talons firmly at the notebook's bottom edge, intercepting the rolling glass with a crisp clack. Motion neutralized. An exemplary display of precision and agility.