Birdquake

The Birdquake is a power-up that appears in the Angry Birds series. It can make materials and pigs fall down.

Description
The Birdquake is pretty strong but not as much as Wingman or the Mighty Eagle.

Angry Birds (game)
In Angry Birds (game), the Birdquake appears as a power-up that can be used in all levels, except in the Egg Defender minigame and some Tutorial levels. It can be obtained by opening eggs in The Mighty League, watching ads or by buying them at the shop.

When using the Birdquake in gameplay, some of the materials and/or pigs will fall down and depending where they are can fall down on the ground floor.

Angry Birds Friends
The Birdquake made it's debut in Angry Birds Friends, the Birdquake appears as a power-up that can be used in all levels. It can be obtained by spinning the wheel and landing on a Birdquake or a power-up bundle, watching ads or by buying them at the shop.

When using the Birdquake in gameplay, some of the materials and/or pigs will fall down and depending where they are can fall down on the ground floor.

Angry Birds Reloaded
In Angry Birds Reloaded, the Birdquake returns as a power-up, with the same appearance as in Angry Birds Friends.

Variants
In the Eddie The Bird Halloween Tournaments, he replaces the Birdquake power-up and it still works the same but with Eddie The Bird's face instead of a scared pig.