Best identification guide for the region
This is the most detailed and comprehensive identification guide for the region, but it is NOT practical as a field guide (too heavy). The authors have produced a closely-related field guide with updated maps and some improved plates, which is a little smaller and lighter (but you'll still need a bag rather than a pocket).
The main advantage of this guide is the species descriptions - missing from the field guide - which are invaluable for the identification of birds in the hand: most particularly groups of very similar species like the cisticolas and greenbuls. Good detail offered on alternative plumages and subtle ID characters (and you can believe much of it!), and the (limited) biometric data is a definite bonus. It's far from the standard of Pyle (US) or Svensson (Europe), but it's pretty useful and the best you'll find for the moment!
We used both books during an international collaborative ringing project in Ghana in 2010 (750 birds, 100+ species), and the extra descriptive information in this Guide made all the difference for some difficult species! However, for birdwatching rather than ringing (field identification) these probably won't help you enough to make up for carrying the tome around.
