inaturalist.org : Contribute to Science. Every observation can contribute to biodiversity science, from the rarest butterfly to the most common backyard weed. We 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.
eBird: Global tools for birders, critical data for science
- Record the birds you see
- Keep track of your bird lists
- Explore dynamic maps and graphs
- Share your sightings and join the eBird community
- Contribute to science and conservation