Resource to help with Audubon readings

Hey guys--thought I would just let you know that through the library homepage, if you search "Birds of North America," you can access a really great site that lets you find out more about some of the species Audubon describes in his journals. I enjoyed being able to hear the songs of the different birds (especially since Audubon describes the lark's song in his 1826 journal and I know nothing about bird songs).

Here is the link from the IU library site (you may have to be logged in to access it):

http://bna.birds.cornell.edu.ezproxy.lib.indiana.edu/bna

Steph