While looking for additional info on Magee Marsh, a great place to photograph warblers, my friend Eric ran across the link to this online book 'Secrets of Digital Bird Photography Tools and Techniques', and sent it to me. I've only read part of chapter 8 on Warblers (8.9 actually) and glanced through others, but have found it very interesting. The photos in the book are excellent and illustrate both good and bad photography examples. Anyway, I wanted to pass this on as there may be some folks on this site that would be interested. The book is free and there is information about the author and more on the 'home' page. Hope you find this interesting.
Have a great day,