This paragraph, suggests one way to achieve 100% Total Destruction on Angry Birds Surf and Turf level 4. If you have an alternate strategy please feel free to leave a detailed comment below. We would like to publicly thank Laurence for both the paragraph and video.
Start off with a red bird toward the top of the far right structure. This will probably blow the TNT, which normally finishes the level, but you should have time to fling some more birds. Use the first yellow to finish off ALL THREE of the barrels on the far right. Use the second one at the leftmost wooden blocks (just to the right of the glass). Then aim the 3rd one towards the angled piece of wood on the rock. Then you want to try to get the SC here. This was the location of it for my successful shot, so it also shows the level of destruction required before flinging the SC!