I have seen Ruby-cheeked Sunbirds (Chalcoparia singalensis interposita) with juveniles in September and December 2018 at the same site; unsure if they are the same pair breeding. Images of the juvenile males. The first adult male feature to develop is metallic plumage at the scapula or marginal coverts (above, 26th September 2018). Then metallic plumage at the neck and forehead (below, 3rd December 2018).
Amar-Singh HSS (Dato’ Dr)
Ipoh, Perak, Malaysia
Location: Kledang-Sayong Forest Reserve, Ipoh, Perak, Malaysia
Habitat: Trail along primary jungle