Birds of the World, a collaborative ornithological platform

Birds of the World, from the Cornell Lab of Ornithology, is an enormous living reference to the world’s birds. It brings together detailed species life histories, behavior, distribution, conservation information, research, and billions of observations from eBird, alongside photos, video and sound from the Macaulay Library. There are currently accounts for more than 11,000 bird species — so if you meet a bird and want to know what its deal is, this is a very good place to start.