Lake of Wisdom

The Lake of Wisdom is a lake in front of the Mighty Eagle's cave, at Bird Island. When he stayed at the cave right above the lake, Mighty Eagle commonly urinated in it.

History
After discovering the Mighty Eagle's cave, Red, Chuck, and Bomb saw the legendary lake. Chuck and Bomb then rushed to the sparkling water and gargled, swam, and drank the water of the lake, much to Red's displeasure. After hearing the footsteps of Mighty Eagle, they looked up in awe at the legendary hero, before discovering he actually urinates in the lake, much to their disgust. Mighty Eagle noticed the three birds and flew them up to his cave, where they sang a song dedicated to Mighty Eagle.

Trivia

 * The lake appears along with the cave in The Eagle's Den in Pig Days (Angry Birds Seasons).