Red faced Crimsonwing - Cryptospiza reichenovii
Male: red face patch and red on lower flanks. Female: yellowish-buff face patch; dark olive-green feather bases to mantle and back show through.
The song is sft (inaudible beyond 3-4m) and variable, consisting mostly of long drawn-out notes on a descending scale followed by a chirp.
Generally silent, but has a sharp or high pitch 'chirp' or 'tzeet' and a loose collection of similar notes.