Tweetboxing

The act of several birds chirping randomly together to form a symphony of sounds. Sounds include interesting clicks and tocks yet staying in beat with an underlying rhythm. The faun-icular equivalent to human beatboxing.

Woah! Listen to those birds chirping on the roof! They sound crazy! What are those noises?
Sounds like they are beatboxing!
Naw, they're TWEETboxing lol
haha