An interesting visualization of the US State birds. I got interested after seeing the Virginia Cardinal and the American Goldfinch at the regional park. It was surprising to see that a lot of states share the same state bird. The Cardinal seems to be the most popular followed by the Meadowlark and the Mockingbird.
It uses the US map svg from Wikipedia. Most of the images are from Wikipedia and Flickr and some from others. Apologies if I infringed on any copyrights, let me know on github if I need to remove something.