From the National Wildlife Federation, America’s oldest and largest wildlife conservation education organization, comes the NWF Guide to Butterflies. This comprehensive and interactive app brings the field guide into the 21st century, providing users with a wealth of information about 627 North American butterflies and common moths.

With over 1,850 photographs, range maps, and dynamic search functions, this app is a must-have for butterfly enthusiasts. Users can search for butterflies by name, either through a keyboard or verbal search system, and can also organize species alphabetically or taxonomically. Additionally, users can search based on family, shape, habitat, region, color, size, or any combination of these criteria.

The app utilizes the latest iOS technologies, allowing users to touch and enlarge photos, take notes, and upload photos to create a digital journal of their observations. Users can also share their observations with family, friends, and the app's growing online community. Each species account includes detailed descriptions, identification details, habitat information, range information, and discussions of behavior and other notable characteristics.

With the NWF Guide to Butterflies, users can have 24/7 access to a wealth of information about butterflies and moths, all conveniently stored on their iPhone. Whether you're a beginner or an experienced butterfly enthusiast, this app is a valuable resource for learning and exploring the world of butterflies.