The American Museum Congo Expedition Manatee and Other Recent Manatees.
Hatt, Robert T.
The Bird Faunas of Africa and Its Islands
A Contribution to the Ornithology of the Eastern Region of Nigeria
Ducks of Sub-Saharan Africa
Maclean, Gordon Lindsay
The Birds of Africa. Volume III (3): Parrots to Woodpeckers
Urban, Emil K.; Fry, C. Hilary; Keith, Stuart
The Birds of Africa. Volume II (2): Gamebirds to Pigeons
Illustrations by Woodcock, Martin
Birds of Kenya
The Birds of Africa. Volume VI (6): Picathartes to Oxpeckers
A Birdwatchers' Guide to the Gambia
The Owls of Southern Africa
Kemp, Alan C.
The Birds of Southern Rhodesia
Priest, Cecil D.
The Birds of Tropical West Africa. Volumes 1-8
Bannerman, David Armitage