Smugglers’ Plane level 12-7 is very difficult. One strategy is to fire the first Blue bird into the far-right tower. If you are very lucky, the cage inside will break. Then lob the Orange bird so it lands between the first tower and the pink caged birds. If necessary, use the next Blue bird to clean up.
If you have a different strategy feel free to leave a comment below; however, don't just post your score via the comments, as that's what the leaderboards are for.
Here is another strategy by FujiToast!
Hurrrrrraaaaayyyyyy
After lots of hard work got the far right bird with the first blue bird by breaking the lowest small ice block feeling very lucky and the structure slips down and destroy the cage and free the bird and me from a tension, also break the low level cages, then I fire the orange bird in between first and second tower and got all others.
Such a relief. Got 95180 and 3 stars Hurrrrrraaaaaaaayyyyyyyyy