Looking for some new ways to take in the great outdoors? Here are 3 free phone apps that will make a walk in the park no less than exciting. Merlin Bird Call will help you to identify every bird you hear or see. PictureThis – Plant Identifier does an awesome job at identifying each flower, tree or plant along the trail. And SkyView Lite teaches stargazing to everyone. Simply point your phone at the sky to identify stars, constellations, satellites, and more. All 3 are available on the app store. Before long, your family will think you have super powers.