A pigeon... "Coup, coup"
A Bird.
It's a matter of a pinion(http://www.merriam-webster.com/dictionary/pinion).
Carp E.D.M. Credit to my friend for this one.
Both are measured in revolutions per minute.
It staged a coup
A pigeon can make a deposit on a BMW
They heard them in the town square saying, "Coup, coup!"