Starscream growls, half crouching on the ground where he landed before. It's pretty obvious that he's not in the mood for taunting and joking around today.

Also, a thought occurs to him: If the human is here... well, there's every chance that her caretakers might be nearby as well. Which gives him all the more reason to capture her alive, as leverage.

"Stop scurrying," he snaps, rising to his feet again to make another, more coordinated attempt at scooping Miko up.