Eco points
Because your poops are limited, save them by only using them on important objects. Eco points are earned when you poop on an enemy or a tree stump. When out of ammo, you can keep jumping.
Special abilities
Each bird has a special ability. The starting bird, Cuckoo Cate, can glide. Tap and hold to begin a glide. This will slow her descent and can be used to travel long areas without using poop to jump. Timmy Tucan's ability is a passive double coin bonus. Chris Condor's ability is unlimited energy, allowing you to never run out of poop. Buzz the Eagle's ability allows him to charge up a mega poop.