Mine and Dine level 16-4 is quite challenging. Our strategy is to lob the first Black bird into the gap between the two towers on the left. The resulting explosion will push the towers outward and hopefully cause a lot of damage. Arc the next Black bird into bottom-left triangle of the top tower to cause it to topple leftward. Note that passing the level with only 2 birds does not guarantee 3 stars. More important is the destruction. The score in the video below is 112,310.