Steve check out this site:
http://photography-on-the.net/forum/ It is a forum that has the same format as this one, only it is dedicated to Canon users. It has sections of the forum dedicated to sharing know how and sections for showing your images and having more experienced photographers critique your work. It is a great way to learn about anything and everything related to Canon digital photography. It is free and the people there are very generous in sharing their time and expertise.
For example there is a section for just bird photos, post your images there and ask for a critique and you will learn lots. I know I did. BTW I shoot with a 40D and either a Canon 400 f/5.6L lens or a Canon 70-200 f/4.0L when I am shooting wildlife.