The field guide which includes all the species found in the Democratic Republic of the Congo is Birds of Africa south of the Sahara by Sinclair and Ryan.
The excellent west and east African field guides such as Birds of Western Africa and Birds of East Africa contain many, but not all of the species found in the Democratic Republic of the Congo and exclude of course the many endemic species.
Second edition, including 500 new images and 400 updated distribution maps. Unrivalled coverage of African birds in a single volume. 2129+ species covered with an additional 101 vagrants briefly described. Revised to reflect the latest changes in taxonomy. Species descriptions give precise identification features highlighting differences between similar species as well as briefly reporting habitat, status and call. Annotated illustrations portray distinctive plumages as well as diagnostic flight patterns and major geographic variants where applicable.
Helm Field Guide covering Kenya, Tanzania, Uganda, Rwanda and Burundi. The first complete guide to this region. 3400 images of 1388 species illustrated on 287 superb new colour plates by Brian Small, John Gale and Norman Arlott. The text plus distribution map and the illustrations for each species are on facing pages. 632 pages.
Helm Field Guide. Utilises all the plates from the Helm ID Guide by the same authors, with a concise, authoritative text on facing pages, to create a guide covering all 1,304 species found in the region. The guide also contains an updated colour distribution map for each species and a number of new images have been painted just for this guide. Covers Senegal, Gambia, Guinea Bissau, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Benin, Nigeria, Cameroon, Rio Muni, Gabon, Congo, Central African Republic, Chad, Niger, Burkina Faso, Mali, part of Mauritania and the islands of Sao Tome, Principe and Bioko (Fernando Po). 512 pages.
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