As an Ornithologist, you must protect the eggs of the South American Hornbill that are nested in your tree. Various predators attempt to steal the eggs from under your nose. Using your slingshot, you must defend the eggs until the timer runs out. If a predator steals an egg you still have a chance to save it, but you risk losing other eggs from the tree while you are distracted.

Next you must protect the Hornbills that have chosen to nest in the sewers, where the gameplay is the same as the tree level. Finally you move onto a bonus round at the Rooster Ranch, here you must shoot roosters that pop out of windows.