If you have ever played in the past, you know the affinity these little balls have for finding their way to the roof or stuck in a tree. Most packages come with more than one- but you might want to do yourself a favor and buy a supplementary pack just in case. If you happen to run out of birdies, you can’t play anymore- so it’s always a good idea to have more than you need. Typically they are sold in a pack of 3 and cost a little less than what you would spend on a cup of coffee.