Science: Bird Brains

[postlink] https://videoburung.blogspot.com/2013/06/science-bird-brains.html[/postlink] http://www.youtube.com/watch?v=ZRz7Xwi1ypUendofvid [starttext] Birds have an undeserved reputation for low brainpower. In fact, they produce one of the most glorious phenomena in nature: birdsong. How do their brains do it? And what does this skill tell us about the evolution of another remarkable phenomenon, human language?[endtext]