This is most probably the same individual I filmed last February 14, 2021 - https://youtu.be/ptRI7AFWoJI, seeing this fellow's misaligned mandibles. The total length of this bird is a mere 4 inches from tip of bill to tip of tail. So, when viewed at 4K in a large screen, its image will be many times life-size.
Red-keeled Flowerpecker (Dicaeum australe, a Philippine endemic)
Habitat - Canopy of forest, edge and flowering trees.
Size - 4 inches total length
Shooting Info - filmed in habitat at Bued River, La Union, Philippines on February 17, 2021, Nikon Coolpix P1000, fluid head + tripod + shotgun microphone, manual focus, manual exposure in available light, 4K/25p.