We only recorded Scarlet-backed Flowerpecker Dicaeum cruentatum on three separate occasions in Thailand, two of which were in the Kaeng Krachan National Park. On both occasions, we saw male birds high up in the canopy which was fine for identification purposes using a telescope but disappointing from a photographic perspective. However, I think this photo show sufficient features to identify the male bird: red cap; black face, blackish breast sides; black legs; white underparts and dark tail band.
Remarkably, Scarlet-backed Flowerpecker was originally described by Linnaeus in 1758 in the 10th edition of his work Systema Naturae, with the binomial name of Certhia cruentata among the treecreepers. It was later reclassified into the flowerpecker genus Dicaeum.
It is a widespread species being found in Bangladesh, Bhutan, Brunei, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Singapore, Thailand, and Vietnam. No global population studies have been undertaken; it is thought to be common throughout most of its range particular in Thailand, although it is considered rare in Bhutan and Nepal. (N.B. I have recorded this species in both Malaysia and Singapore but never in the Indian subcontinent which I have visited on many more occasions that south-east Asia / jc)
Scarlet-backed Flowerpecker is found up to 1,000 m in subtropical or tropical moist lowland forests, wooded areas and gardens. In the north of its range, it is found in southeastern China to Fujian (as the subspecies Dicaeum c. cruentatum). It has been recorded from both native and plantation forest in West Bengal in India.
Reference: Wikipedia
Country: Thailand
Location: Kaeng Krachan National Park
Family: Flowerpeckers (Dicaeidae)
Species: Scarlet-backed Flowerpecker (Dicaeum cruentatum)
Date taken: 05/12/2016