Our strategy for Mighty Hoax level 4-8 is to loft the first White bird over the main tower, dropping its bomb just left of the TNT on the right side. With a similar purpose, drop a bomb just right of the TNT on the left side. Be sure to keep the second White bird low, so it will ricochet into the main tower. As necessary, bomb the middle tower to pop the final pig. The score in the video below is 51,890.
Version 2022: