Ash J & Atkins J. 2009. Birds of Ethiopia and Eritrea. Christopher Helm

The latest bird atlas from Africa. The authors have been collecting bird records in these two countries for more than 35 years. Records include published records, museum specimen data, sightings from their own travels and sightings from birdwatchers. The book shows the distribution of 870 species and 38 weavers have maps. The introduction covers topography, geology, vegetation, climate, habitats, conservation, migration, breeding seasons, bird ringing, and the history of ornithology in the region. Read more here
Several bird atlasses have been published in Africa, particularly covering southern and eastern Africa, and some countries in West Africa. These bird atlasses are listed here, with a map showing the countries covered.