Most warblers feed primarily on insects but do eat some seeds and fruits.
Suet, peanut butter mixtures, and fruit may attract them to feeders. Prothonotary Warblers will sometimes use nest boxes but most warblers won't. Parulas and Yellow-throated Warblers usually build their nests in a clump of Spanish moss, Pine Warblers nest in pine woods, and Yellowthroats nest in marshes, swamps, and wooded areas. In addition to those listed below, there are another thirty or more warblers that are regularly found in Florida. Two, Bachman's Warbler and Kirtland's Warbler, are listed as endangered .