Even with 560 pages in our Warbler Guide, we still didn't manage to say everything! Here are some articles and information that will help deepen your birding skills.
Why We Wrote the Warbler Guide
Weather, Migration and Fallouts
Using Flash to Photograph Birds Part 1: Flash as a Primary Light Source
Using Flash to Photograph Birds Part 2: Fill Flash
How to Help Others Find a Bird
Article on Often Overlooked ID Points by Tom for LA Audubon