Angry Birds~

I really don't know what is "angry bird" before. I thought that it was just a real new species bird found recently. However, a wrong assumption i made. It is a kind of games on cell phone. The birds are looked like very angry with a pair of  "angry eyebrows", they are blue, red, yellow, white or black in color. They are angry because the little "piggy head" was stolen their eggs. The angry birds have different functions within each other so that they can attack the piggy to get back their eggs.
After i knew the story of angry birds, i realizes that they are really very popular at everywhere. When i was teaching in a primary school as a temporary teacher, my pupils like angry birds very much and almost all their stationary are the products of angry bird. Even when the time i left them, they give me the angry bird stationary as present for me. They are really cute and funny. Now, i realize that i starting to fall in love with this game.