Besides Sound Around You and London Sound Survey introduced in the previous blog post: Urban Sound Maps, Listen to Africa and Nature Sound Map are two another intriguing sound maps that are worth your attention. They specialize in mapping sounds of nature and wildlife as opposed to urban sounds.
The Listen to Africa expedition is a two-year journey by bicycle to record some of the sounds of Africa, from oral histories and music to soundscapes and wildlife. It targets sounds unique to Africa, such as the sounds of River Gambia in West Africa, and introduces them through blog posts with podcasts.
Details at: http://www.listentoafrica.com/audio/
Effort in archiving sounds of nature goes global in the project of Nature Sound Map, which brings to everyone recordings of natural soundscapes and individual species which are particularly interesting examples of sound in the animal kingdom. Many recordings in the collection are stereo recordings made with two microphones which capture sound in 360 degrees, offering to users a realistic representation of all the sounds in a particular habitat.
Details at: http://www.naturesoundmap.com/