I was initially of the opinion that this bird is a female Plain Sunbird (Anthreptes simplex). But note the small white patch on the forehead in front of the beak; also not that the mantel, wings and tail appear to be in moult. Wonder if this is a self-feeding juvenile male who is just developing the frontal metallic plumage? The more orange feet also support a juvenile.
The above is of the same bird showing common foraging behaviour of examining dried leaves for insect prey (also note tail moult).
Amar-Singh HSS (Dato’ Dr) – Ipoh, Perak, Malaysia
Location: Kledang-Sayong Forest Reserve, Ipoh, Perak, Malaysia
Habitat: Trail along primary jungle
Date: 26th September 2018
Equipment: Nikon D500 SLR with Tamron SP 150-600mm f/5-6.3 Di VC USD, handheld