2-11 2 Birds
Aim first yellow bird at stone block in middle of middle tower. Try to score 38,000+ points as tower topples getting all birds to the right of it.
Aim second yellow bird at birdcages up front. Try to hit between joint of third and fourth wood blocks (from the bottom) supporting second birdcage. This will ensure the second birdcage breaks open.
2 Stars: 53,000
3 Stars: 60,000