Unleashes a red bird. It deals a decent 40 damage to enemies with a small damage radius, letting near misses do damage as well. It should be noted that all birds only do damage on the first hit with the ground. Afterwards, the bird will bounce and hit the ground a second time. This is only for show, and does nothing.
The Furious Birds deepen the Angry Birds reference by adding its second type of bird: the blue bird. First the weapon fires a red bird that has its damage reduced to 30, following up with the blue bird that, just like in Angry Birds, splits into 3. One projectile goes directly where you shoot and the other 2 split equally to the left and right. They each deal 15 damage. The best way to fire this weapon is at a close distance and about 45 degrees. This way all projectiles hit and deal a significant amount of damage.
The Livid Birds add the most destructive bird of the game they imitate: the yellow bird. The weapon fires a red bird that had its damage reduced to 20, then the blue bird, that now only does 10 per projectile and then the yellow bird that deals 40 damage. As a being of pure hate the yellow bird accelerates shortly before impact, which may lead to it missing where your other birds hit. Because of this and for the same reason as the Furious Birds a short range attack with about 45 degrees is the best way to go about things, since this is the best way to hit all the birds, which is necessary, because the guaranteed hits are only the red and 1 blue bird otherwise, which would only deal 30 damage.