Large, chunky dark sunbird. Males often look completely blackish, but in good light show an iridescent green forehead, and in most of the range, a green bib. Females are heavily streaked below and have a pale eyebrow. Found at low and middle elevations in forest, gardens, and secondary growth. Usually in the canopy and mid-story. Male similar to male Amethyst Sunbird, but separated by the lack of a purple throat patch. Females even more similar, but Green-throated is slightly darker on the back and more heavily streaked below.