The blue-capped hummingbird or Oaxaca hummingbird ( `` Eupherusa cyanophrys '' ) is a species of hummingbird endemic to subtropical moist forest in the southernmost portion of the Sierra Madre del Sur in the Mexican state of Oaxaca .
The blue-capped hummingbird or Oaxaca hummingbird ( `` Eupherusa cyanophrys '' ) is a species of hummingbird . It is endemic to subtropical moist forest in the southernmost part of the Sierra Madre del Sur in the Mexican state of Oaxaca .