Birding book for Tanzania?

Can anyone recommend a good but reasonably priced field guide to birds in Tanzania?

I used "Birds of East Africa" by Terry Stevenson and John Fanshawe. Its about 600 pages, half of the pages being color plates with drawings of the birds - I bought it on Amazon, but I don't recall what I paid - it not only describes each bird, but also has a useful map that shows whether the bird would be found in the country you're in. I also had "Wildlife of East Africa" - it covers the basic birds (maybe a 130 pages, with half the pages being photos of 5-6 birds), and also has various animals that you'll see. Also got that on Amazon.

My interests lie solely with raptors, and I used a guide called "Birds of Prey of East Africa" that is fantastic. Lots of terrific raptors in East Africa!