Thanks steviep147, yes I get the large rock after many attempts.

Same strategy as anyone else. Orange bird south around the planet, 2nd bird into the popcorn, 3rd and 4th bird against the jelly into the two structures. Picture of my score in my album:

As per strategy from comex666, skimmed the first boulder and pushed the second tower to the right. Yellow bird felt back and broke one of the wooden pieces of the first tower which collapsed for a bit more points. […]

I use the white bird to destroy the vertical plank to the far right holding the upper structure. To do this I keep white bird above waterlevel and release the egg so that it pops the planks holding the tnt. Red […]

Happened to me twice already, almost had a zero-birder. Most points earned is about 190K

Different strat: Shoot Yellow Bird just under the opening of the branch of the tree. There is a little curve in the branch.Yellow Bird will drop in the gap between the two towers on the right side causing the two […]

Like the video, first bird to far right, second to the cord on the bottom. Two tries and a monster score! Picture is in my album

Same strat as everyone else but I managed to push the whole stone cage in the gravity field for more points.

Very difficult level. Just as Dr. O’Neski only one bird needed. Push the pink bottle against the two blue bottles and to the far right. You get a cascade of little pigs who changes into big pink pigs. Good luck

I do first bird to the south and second bird to the north, because you have the TNT with more debris. About 75.000 points after first bird, 115.000 points after second bird and one pig left (the one in the stone […]

Two-bird solution like comex666′ video, only I sent lazerbird from above. Score after big bird 71K, pushed almost everything over the edge from the first structure. Lazerbird to the bottom, taking the rest down […]

First bird about 60 degrees to land just in front of the vertical stone shelf. Inflate manually just before hitting the vertical stone shelf.
Second bird almost straight ahead, just over the metal piece which […]

I used all 4 birds. First bird as described by @angrychicken. Finally it felt my way and topscore for now. picture in my album

I agree with Pauliboy. You can have a total destruction also with aiming for the TNT in the middle tower.

1 birder. The same strategy as Comex666 video. Just a few ice blocks left