INaturalist

The one to pick if you notice beetles, frogs and spiders as much as birds. Photograph any wild animal, upload it with a location, and a community of naturalists helps confirm the species; agreed records become research-grade data that scientists can download. A single photo on a walk is a complete contribution. Ordinary uploads matter. The Angled Australian Barkhopper, a tiny pygmy grasshopper, had not been recorded for more than 130 years until amateur photographers in northern New South Wales posted pictures of it, and use of iNaturalist data in peer-reviewed research has risen roughly tenfold in five years.