Southern Beardless Tyrannulet

Vocalizations

Subspecies (13)

• Camptostoma obsoletum bolivianum

  central Bolivia to northwestern Argentina (Tucumán)

• Camptostoma obsoletum caucae

  Colombia (western Andes, and Cauca and Magdalena valleys)

• Camptostoma obsoletum cinerascens

  eastern Brazil (Maranhão to Ceará and Mato Grosso) and western Bolivia

• Camptostoma obsoletum flaviventre

  Pacific coast of southwestern Costa Rica and Panama

• Camptostoma obsoletum griseum

  arid littoral of western Peru (Lambayeque to Lima)

• Camptostoma obsoletum majus

  Pearl Islands (Panama)

• Camptostoma obsoletum maranonicum

  northern Peru (middle Marañón Valley)

• Camptostoma obsoletum napaeum

  far south-central Venezuela to the Guianas and northern Brazil (east Amazonas, Pará, and Amapá)

• Camptostoma obsoletum obsoletum

  southeastern Brazil to Uruguay, Paraguay, and northern Argentina

• Camptostoma obsoletum olivaceum

  southeastern Colombia to eastern Ecuador, northeastern Peru, and western Brazil (western Amazonas)

• Camptostoma obsoletum orphnum

  Coiba and Cébaco islands (Panama)

• Camptostoma obsoletum pusillum

  Caribbean coast of northern Colombia, northern Venezuela, and Trinidad

• Camptostoma obsoletum sclateri

  tropical western Ecuador and far northwestern Peru (Tumbes and northern Piura)