Not all birds are equally harmless. If you start to play Free Online Games Angry birds, you will see that some of the birds can stand up for themselves. When their nests attacked and kidnapped svinushki laying eggs, the birds got angry and decided to take revenge on the most cruel manner. They did not spare himself, turned themselves into shells and, taking off from a slingshot, rush directly to the houses pigs, to destroy them. The enemy tribe also showed cunning and reinforced walls, making them the ice, brick, wood. But every bird is a special shell that is easy to break any masonry.