3-5 2 Birds
Aim first red bird just over triangle sitting on top of square at lower part of structure. Try to destabilize and topple entire left side of structure, leaving only ice and monkey on the upper right.
Aim second blue bird at lower foundation of ice support of final monkey. Split so that top mini-bird takes out support and the ice falls to clear any debris below.
2 Stars: 73,000
3 Stars: 80,000