Robust warbler found near the ground in thick vegetation. Yellow below with blue-gray head and olive back. Adult males show black chest patch. Immature birds have duller olive-green head. Note pink legs. Breeds in brushy, weedy clearings with some trees. Often favors raspberry thickets. Often hidden in vegetation and skulks near the ground, so listen for its rolling song "churry churry churry chew." Feeds on insects. Similar to MacGillivray's Warbler, but limited range overlap during breeding season and migration, and lacks white eye-arcs. Winters in Central and South America.