Female rifleman, possibly young

The female rifleman (Acanthisitta chloris) is slightly larger than the male, weighing in at a whopping 7 grams, versus his 6. Females also have different colouring than the males, lacking the green back and shoulders. The female is more brown and speckled, though she has the same pearly-white chest and belly, the white eye stripe and the sweat-stained underarms. I suspect this rifleman is a young female, as it still has a bit of speckling on its chest and the white eye stripe isn’t very strong.