Mad Feathered Animals (a.k.a. Angry Birds)

Yes, it's that time of year.  May 20th, 2011.  Angry Birds Day.

http://www.rovio.com/index.php?page=angry-birds

Okay, fine, I made that up. There is no Angry Birds Day. But there is this:

http://www.wired.com/wiredscience/2010/10/physics-of-angry-birds/

And this:

http://www.wired.com/wiredscience/2010/10/does-the-angry-blue-bird-multiply-its-mass/

And, guess what? This:

http://online.wsj.com/article/SB10001424052748703779704576074222543274268.html

Angry Birds are invading the interwebs! AAAAAAHHHHH!