Apo Sunbird (Aethopyga boltoni) [XC321102]
by Ross Gallardy from Mount Kitanglad Range Natural Park (near Malaybalay City), Bukidnon, Northern Mindanao, Philippines (call)
Apo Sunbird (Aethopyga boltoni) [XC39410]
by Brendan Sloan from Mount Kitanglad, Mindanao, Philippines (call)
Subspecies
Forms a superspecies with Lina's Sunbird (Aethopyga linaraborae).
The following 3 subspecies are recognised:
malindangensis Rand & Rabor, 1957 - Mt Malindang, in western Mindanao (southern Philippines).
boltoni Mearns, 1905 - Mt Kitanglad, Mt McKinley and Mt Apo, and presumably Mt Pasian, in central Mindanao.
tibolii Kennedy, Gonzales & Miranda, 1997 - Mt Busa and Mt Matutum, and presumably MtParker and L Sebu, in southern Mindanao.