we cannot say its not a language.. as we dont' have the slightest idea what it means (birds).. just a thought tho.
As for bees, I saw an episode on PBS about a guy studying bees. He would train them to leave the nest for sugar water (not the main test).. Until he got them NEAR a tower. I forget the height of the tower, but it took the guy a few minutes of stairs to climb. He would tag the bee's daily, so he knew which bees were new and which ones have been there for a while. The first time.. he set the sugar water at the top.. once a few bees found it.. then they set up another one at the base... All of the bees went to the top and ignored the bottom... As it was communicated to them that it was on top. To further the study, the next day he reversed it.... and sure enough bees went to the new location. And to point out, There were lots of new bees (hehehe accidental pun) at the correct one. Aka, they had no clue where it was at, yet it got to the exact place without a problem... (if it had a problem, you would have expected to see a lot more bee's at the other sugar water stand, but you didn't)
Thats is why i brought up bees.. It may be a dance, but its still a form of communication, and pretty good if you ask me.
Oh and sorry, yeah i mis-understood you. Oh and to note... we are genetically "programmed" to speak. Regardless if you talk around a child, they will begin to use their voices... They just need others to learn how to speak like us. I read that last semester on MSNBC.