If you find yourself birding down at John Martin Reservoir during the festival, try out the park's Agents of Discovery App for kids. This augmented-reality app has a special mission with bird-based challenges made just for the High Plains Snow Goose Festival. To download, click here for Android phones, or here for IPhones. After downloading, click on missions and download the High Plains Snow Goose Festival mission. Due to limited phone service at the park, it is recommended to download the mission before arriving.