Wonder what a gibbon sounds like? 

Abby and I were at the zoo and we hear this wild car alarm-like sound. Woot, woot, whoot, or sounds like someone is pointing and saying ooooo, like loooooooook at what you did! We followed the sound until we got to the gibbons. They stopped as soon as we got there so I didn;t get to make a video, and the Youtube vids just not quite the same, so Abigail and I have done our own impersonation.