Black-bellied Sunbird

Overview

The black-bellied sunbird (Cinnyris nectarinioides) is a small sunbird located primarily in Africa. Two subspecies are recognized: the Cinnyris nectarinioides erlangeri, which is smaller and found in Ethiopia, Somalia, and Kenya; and the Cinnyris nectarinioides nectarinioides, which is larger and found in Kenya and Tanzania. This bird inhabits savannah, wetlands, and terrestrial freshwater areas.
This species has an average size of 13cm for males and 10 cm for females with both weights typically ranging from 4 to 6 grams.

Summary from Wikipedia, available under CC BY-SA 4.0.