Surely this is not a game about birds shitting on things. Let's see what the official announcement has to say about Turd Birds:
The latest mobile title from Cat Daddy Games, Turd Birds takes fans on an adventure seeking various pedestrians, friends, and treasure boxes to splat with bird turds. As players progress, so do the settings and obstacles, which range from beaches and construction sites complete with UFO’s, to residential neighborhoods and city streets streaming with zombies.
It's a game about birds shitting on things — a free game about birds shitting on things. You can even connect to Facebook to port your friends' pictures into the game and shit on those. I think I might be down with that.