Purple-throated Sunbird - Leptocoma sperata
This is a male Leptocoma sperata (Passeriformes - Nectariniidae), a species native to Southeast Asia.
In the adult male, the crown of the head is metallic green or golden-green copper. The sides of the neck, scapulars and mantle have a beautiful burgundy color. The lower back, rump and uppertail are metallic green, contrasting with the black tail.
Synonym: Nectarinia sperata.
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Photo credit: ©Eddy Lee | Locality: unknown (2008)