Stevenson, T. & J Fanshawe 2020. Birds of East Africa (Kenya, Tanzania, Uganda, Rwanda, Burundi) - second edition. Helm Field Guides, Christooher Helm London. ISBN 978-1-4081-5736-7
Stevenson, T. & J Fanshawe 2020. Birds of East Africa (Kenya, Tanzania, Uganda, Rwanda, Burundi) - second edition. Helm Field Guides, Christooher Helm London. ISBN 978-1-4081-5736-7