Nature Explorer is a nature identification program for Android phones with 12 downloadable nature topics. It is for Android and Windows. Completely FREE!
Android users can choose any topics:
Birds, Bird Vagrants, Butterflies, Insects, Mammals, Fungi, Wild Flowers, Green Plants, Reptiles, Trees, Rocks, Fossils.
The legacy Windows desktop version has all nature topics included
FREE Nature v9 - Windows & Android
Download the nature topics you are interested in onto your phone memory