Several years ago I took the basic Bird Biology course from Cornell by correspondence and loved it. It has changed a lot since then. I talked to someone else who took the newest version of the course, and they were learning a lot.
I recently received an email from Cornell concerning their newest on-line course, "Investigating Behavior--Courtship and Rivalry in Birds." It looks great, but at $255 for Lab members ($295 for non-members) it is probably a little steep for me right now. But as soon as I can put my fingers on that amount of $$$, you can bet I'll be signed up. If any of you take the course, let me know what you think (although it will probably just make me jealous.)