Warbling Vireo

Subspecies (5)

• Vireo gilvus brewsteri

  breeds from Montana and southern Idaho eastward to western South Dakota, southward to western Texas and south-central Mexico (Oaxaca); winters in south-central Mexico

• Vireo gilvus gilvus

  breeds southwestern Canada to east-central USA; winters to northeastern Costa Rica

• Vireo gilvus swainsoni

  breeds from southeastern Alaska to northern Montana, and along Pacific coast to northern Baja California Norte; winters in western Mexico

• Vireo gilvus sympatricus

  resident in south-central Mexico (Puebla)

• Vireo gilvus victoriae

  mountains of southern Baja California (Sierra de la Laguna)