Bill black, long and curved. White spot behind the eye. Crown, area around the ear, nape and upperparts bright green. Wing feathers blackish. Males and females are different. Male: 11 - 12.5 cm. 2.33 g. Chin black, throat glittering pinkish-violet, a white band on chest. Underparts dull green, central belly white. Tail very long, deeply forked, two inner feathers, rest blackish. Female: 8 - 9 cm. 2.6 g. Blackish stripe behind the eye. Throat and underparts cinnamon. Tail black, much shorter, with a subterminal black band and white tips; the two central feathers green. Immatures are similar to female.