The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Detention Apps:
*** NEW AND NOTEWORTHY FRONT PAGE IN JAPAN! *** **** This is the FREE, LITE Version with only a few levels- BUY Full Version for iPhone/iPod Touch (BIRD DROPPINGS) and iPad (BIRD DROPPINGS!) to play 50 levels in 5 separate worlds! Thanks for your support! *****Bird here, Bird there, Bird Droppings Everywhere! Bird Droppings features Unique Puzzles, Bright and Colorful Birds and Environments with cool textured graphics, and Mind-Bending levels that will hook you from the first level! Birds are dropping, so it is your job to save them one by one, and land them safely on the platforms! If they delve into the abyss below, it's game over! Timing, dexterity, skill, and a little luck are all involved in each level! You'll love the Birds expressions as they fall to their demise! Tap the blocks quickly, and strategize your moves, and don't get distracted by the gorgeous environments! Snag the Bonus Star in each level to pass with 2 Stars!