Stealth in suburbia

It is normal Riley behavior to run at breakneck speed through the house whenever she wants to go outside. So, it aroused Zohar's curiosity this morning when he witnessed her staring out the window, turn and slowly move towards the doggie door in hunt position. He looked out the window and there, under the tree, sat a cute little rabbit. Riley kept up her subtle movements, even though the rabbit couldn't see or hear her, until she reached the doggie door. Then WHAM out she flew towards the rabbit. The little guy got away, again.