At least forty species of warblers either visit or nest in North Carolina; however, they are among the hardest birds to find and to identify. Warblers are all the same size and come in a confusing array of colors and share similar field marks and songs. Warbler watching can become easier; vegetation, climate, and geography are clues to the type of warbler to be found in a particular location. Some warblers are restricted to types of vegetation growth. Most of the warblers winter in the tropics. Lee discusses a number of warblers and locations for viewing them.