The scarlet-headed flowerpecker (Dicaeum trochileum) is a bird species in the family of Dicaeidae.

The scarlet-headed flowerpecker body length can reach up to eight to nine centimeters after maturity.

[5] The red to orange upper body of the males is the main characteristic that distinguishes them from the females.

[3] Many tourists travel to the region of Taro on the island of Bali to observe this bird.

[9][3] The scarlet-headed flowerpecker feeds mostly on small berries, insects, nectar and pollen.

[3] This flowerpecker lays the eggs in a large hole dug in the middle of the nests.

[12] The individuals calibrate their moulting with the abundance and quality of the food resources they can find.

[12] The breeding season of this species changes depending on the island and the region each individual inhabits.

[2] In 1938, the morphology of some unidentified bird species exhibited in the Buitenzorg Museum in Borneo was analyzed because of the similarities between their morphology, and that of the scarlet-headed flowerpecker and the sundanese flowerpecker (Dicaeum cruentatum).

[13] The bird found have similarly colored underparts, wings and tails feathers as in both flowerpeckers.

The human presence and the noise disturbance affect this bird's activity during the day.