Update from Busuu.com
Wow! More interesting news just came in from the folks at Busuu! They've done something, well, unprecedented as far as the Free Language team can tell: they've added an endangered language called Silbo Gomero to be learned right through their website!
This language is not spoken, but whistled (silbar = to whistle in Spanish), and is used by the people of Gomera, one of the Canary Islands off Spain, to communicate between long distances and over rough terrain. How cool is that!
Check out this video from Busuu about this fascinating language:
From Website
Become a Silbador!
The existence of the whistled language of Silbo Gomero on the beautiful Spanish island of La Gomera has for years fascinated linguists and language enthusiasts alike.
Silbo Gomero was invented in order to facilitate communication between the people of the island across the deep gorges and valleys long before mobile phones were invented. The tradition continues even now with the local government including it in the educational system of the island.