How to Obtain
First go to Theme 14-4. Zoom out all the way and you'll see the egg on top of the cliff to the far right. Launch the Yellow Bird at high trajectory to reach the shelf and recieve it.
How to Complete
Launch the Black Bird to the first structure and it will topple over and kill some of the pigs in the pile. Use the second one to finish off the ones in the pile. Then, finish off the last pig in the structure on the right.The unused Black Bird will reward the player an extra 10000 points.