The iNaturalist app helps you upload citizen science observations of plants and animals to the iNaturalist.org online community for naturalists as well as other members of the iNaturalist network.
How It Works :
1.Record your observations
2.Share with fellow naturalists
3.Discuss your findings
Every observation can contribute to biodiversity science, from the rarest butterfly to the most common backyard weed. The app share your findings with scientific data repositories like the Global Biodiversity Information Facility to help scientists find and use your data. All you have to do is observe.
For more info, check out http://www.inaturalist.org