Poached Eggs 1-20

Theme 1-20 (AKA:BOULDER BIGHOUSE) is the 21st level of Poached Eggs.

3-Star Strategy
Shoot the first bird into the air, then aim it so it hits the wood between the first couple of stone blocks and the boulder. If one bird wasn't enough to get through, fire a second bird at the same spot if possible, so the strucutre crashes down and kills the two pigs.