Summer Pignic level 5 is a bit challenging. Fire the first Yellow bird through the bottom-left of the structure. Lob the next Yellow bird and push the large boulder in the top-right onto the TNT. Use the White bird to clear any remaining pigs. The score in the video below is 121,540.
Beware: Baby Piggy is hiding in the grass under the white flower, so be sure you pop him with the first shot.