カワリタイヨウチョウ Cinnyris venustus

Medium-sized sunbird with strikingly different breeding male and female plumages. Breeding males are green on the head and back, with a purple band across the breast. There is much regional variation; the belly can be yellow-orange, yellow, or white, though it is yellow across most of the range. Some subspecies also show extensive purple onto the throat. Females and non-breeding males are plain olive-brown on the back and dull yellow below. Found in a broad range of habitats, from arid thornscrub to moist savanna, gardens, and forest edge. Vocalizations typical of a sunbird, and include a quick jumbled song. Similar to Collared Sunbird, but larger, with a longer and more curved bill.