This taxon is Not Recognised as a species by BirdLife International.
Dicaeum sanguinolentum, D. wilhelminae and D. hanieli (del Hoyo and Collar 2016) were previously lumped as D. sanguinolentum following Sibley & Monroe (1990, 1993).
BirdLife International (2023) Species factsheet: Dicaeum sanguinolentum. Downloaded from http://datazone.birdlife.org/species/factsheet/dicaeum-sanguinolentum on 03/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 03/12/2023.