How sweet! This is a baby mountain cottontail _Sylvilagus nuttallii_ native to your State of Washington. After they leave the nest they hide to wait for mom to gather the siblings together for nursing and play. Then they disperse again to hide from predators that would be attracted to mom. They stick together like that until they grow to adult size and the mom finally weans them at three months of age. So right now, your home is a wildlife refuge, where this baby can safely wait for mom! He knows it, too! That’s why he zooms, for fun! Thanks for the video and sharing your home with our precious wild bunnies 🐰❤️