White-browed Gnatcatcher

Subspecies (5)

• Polioptila bilineata bilineata

  northern Colombia to western Peru (northern La Libertad)

• Polioptila bilineata brodkorbi

  Atlantic lowlands of southeastern Mexico (northward to southern Veracruz and northeastern Oaxaca) southward to eastern Nicaragua, intergrading with superciliaris in northern Costa Rica

• Polioptila bilineata cinericia

  Coiba Island (Panama)

• Polioptila bilineata daguae

  Colombia (upper Río Dagua and upper Río Patía)

• Polioptila bilineata superciliaris

  Pacific and Atlantic lowlands of Costa Rica and Panama, probably also adjacent northwestern Colombia