Youtube has a bunch of these:
This is the "Official Angry Birds 3 Star Walkthrough Theme 3 Levels 11-15"
A description of what occurs in the video:
1. Fire black bird at gap between concrete levels 3 and 4 (one above first die).
2. Black bird explodes on top of second tall wood column. Second pig is
3. Fire white bird on slightly higher trajectory, dropping egg between third
and fourth (now second and third) pigs, destroying both.
4. Fire second white bird on lower trajectory, dropping egg between first (and
only) remaining pig and die, destroying both.
Total points in example video: 56460. ★★★