I've birded for a number of years but I wanted to be able to distinguish birds by their calls, especially the shy ones. This CD volme was the perfect introduction. Dick Walton's informal, almost folksy, comments made for enjoyable listening and learning. Sure there are only 91 species but one great sampling. Now that he has taught me "hooks" and "handles" I have graduated to using the Stokes CDs, but at least I can now differentiate closely related songs thanks to Mr. Walton.
If you are new to bird songs, please start with this volume. In contrast the Stokes volume presents the songs, but no commentary. It is up to you to find the hooks and handles and figure out how to memorize all the songs.
BTW, I disagree with Mr Walton on one bird. He says the California Quail is calling "Chicago, Chicago." In my field experience I am sure it is looking for "Atlanta, Atlanta."
Great CD, buy it!