Black-Headed Weaver

Breeding male black-headed weavers have a greenish-yellow mantle and back plumage and the pale underpart plumage is suffused with a variable amount of chestnut. The iris is dark brown. The female and non-breeding male do not have the black head and resemble a female masked weaver, except they have dark eyes and a darker bill. There are five subspecies and it appears I saw ssp dimidiatus which is found in northeastern DRC, Uganda, southwestern Kenya, northwestern Tanzania, southeastern Sudan and western Eritrea. Dimidiatus has rich chestnut underparts with yellow restricted to the belly. 

Found on the hill between Nkima Forest Lodge and the Mabamba Swam on Lake Victoria in Uganda. It was with another bird that has given me fits and which I now think is a female red-headed weaver. 

Illustration of ssp dimidiatus from Birds of the World. 

I am really struggling with the weavers as there are many species and the same species can look very much different from each other. 

Range from Birds of the World. It does show it belongs on the western edge of Lake Victoria in Uganda.