Angry Birds Rio Smugglers Plane Star Bonus Walkthrough Level 18

Thanks @rocklands for the great strat ;-) I did get a few two birdies but my scores were 95K+ and 96K+. I got my highest score with three birds.
Here’s how it worked for me:
I sent the first one at the top of the big left box. It broke both boxes and throws the stones at the front of the structure. You can get lucky with this shot and also break up the middle of the first structure only leaving the red and yellow bird cage. When this happens, scores are around 26K – 28K. Otherwise if you just get the front, scores are more in the 22K range.
For the second bird, I did better when I hit very high up on the big crate in the back, sometimes hitting the vertical cement planks. This more often allows those two left boxes to fall down too. I found you need them to fall and get the fire extinguisher to explode to get a really good score. My score at this point was 65K.
I then sent the third bird at the horizontal plank just under the thin cement vertical plank under the remaining yellow and red bird cages that were left in the middle structure.
97920 Three birds. If debris flew over and got those last two cages I would have had about 108K. It was so close! Debris bumped them but they didn’t fall, ugh ;-(
When I got it with two birds, twice, I got a few less debris points. Either the two boxes didn’t fall and/or only the first part of the front structure went down with the first bird…leaving that middle section intact. It is cool though when the fire extinguisher explodes just right, that concrete cement triangle from the top right flies over and takes out those middle birds. Nice strat…thanks again ;-)