"Uploaded on Apr 16, 2010 Learn the most fundamental skill for identifying birds: recognizing them by size and shape. Birding experts Chris Wood and Jessie Barry show you how to compare different birds and employ your observations to make a confident ID. Join them in the field to practice these techniques on common birds and learn how to distinguish similar species such as Hairy and Downy woodpeckers. Watch more Inside Birding episodes from the Cornell Lab on these keys to bird identification:" - Harold