Copper-throated sunbird 
(Hút mật lưng đen, Leptocoma calcostetha)
The copper-throated sunbird (Leptocoma calcostetha) is a small passerine within the Nectariniidae family.
The bird is found in south-eastern Asia, predominantly in coastal regions: Singapore, Vietnam, Malaysia, the Philippines, Myanmar, Cambodia and western Indonesia (i.e. Java Island).

The name Leptocoma combines the Ancient Greek words leptos "delicate" or "fine" and kome "hair".
The species name calcostetha originates from the words khalkos which means bronze; and stēthos which means breast.