Xeno Canto is great. There is also crowd sourced photo database, in Flickr, "Field Guide: Birds of the World", where people have put in lots of effort to assoc

Xeno Canto is great. There is also crowd sourced photo database, in Flickr, "Field Guide: Birds of the World", where people have put in lots of effort to associate species tags to photos. Unfortunately, the copyright and license varies from photo to photo. Majority is "All rights reserved". So the only way to use it is basically to explore it through Flickr's website. It would be good if at least it had creative commons licenses, like Xeno Canto has. https://www.flickr.com/groups/birdguide/pool/ https://www.flickr.com/groups/birdguide/pool/