Harley, a parrot who has her own YouTube channel, is a master of creating a commotion. A number of clips have emerged showing the white cockatoo toppling entire towers with its beak. Harley uses her beak on the cabinet handles to climb down from a kitchen counter in this video.

And gently, she inspects all the tower-like she is devising an evil plan. She walks up to a tower and carefully knocks on the tower. Then, slowly moves on to the other.

While her owner filmed, a Dutch cockatoo with a flair for the dramatic repeatedly knocked over stacks of plastic cups.

Here’s another cuckoo’s evil plan in action. I am amazed at how neatly she tumbles down the cup. Watch the full video here:

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What do you think?