Nature
Explorer for Android
Well done, you’ve found one of the nicest pieces of free software I’ve found so far on the Android platform
You can visit Nature Explorer’s homepage here.
Nature explorer is the product of Aviasoft, and it catalogues all sorts of natural phenomenon such as Birds, trees and flowers. The developer is actively working on it and I think it’s great. It can be downloaded from here in several formats.
The program itself can be downloaded here. (93MB)
There is a birdsong addon pack which can be downloaded here. (67MB)
I have combined both in to one large package which can be downloaded here. (159MB)