A breeding-plumage male Zanzibar Red Bishop shows a red crown and forehead above mostly black underparts. It feeds on seeds in wet grass, and nest and female records are documented in Tanzania.
In a breeding-plumage adult male, the crown and forehead are red and most of the underparts are black. Some inland Tanzanian birds have a red throat as well.
It uses grassy, shrubby wetlands and feeds mainly on seeds, mostly on the ground. Oiseaux.net lists it as sedentary and seed-eating. In Tanzania, photographs document nests, eggs, and a female at a nest.
An extinction-risk assessment has not been added yet.