Cold Cuts 2-23

Strategy
For Cold Cuts 2-23, send the Ice Bird up (or down) about midway through the gravity field so that it lands on the stone beam on the left hand side of the planet. The beam will freeze and should break, taking out the left hand side of the structure. In the video, FujiToast was able to take out all the pigs in one shot, but you can still get 3 stars using two birds.