This level is the introduction of Black Bird
The only way to earn score fast is use all Black Birds.
Counter-intuition is the best strategy for Pig Bang level 1-14. In this level, it is best to use all three Black Birds , so long as you send them into stone diamond. Launch the first bird into the diamond next to the Foreman Pig. If only one pig remains, fire the next into stones not near it. Then clear the level with the last bird.