My last species is gone meanwhile, it was Common Scimitarbill...
Last night I was checking Ostrich taxonomy (IOC) and got a bit confused: Somali Ostrich is the species occurring in South Africa and also central Tanzania. It hasn't been played yet, and suddenly there's a species I don't know if I've seen or not! I'd need to check my old slides

The Africa South of the Sahara birdbook showed Somali to have a much more restricted distribution and that's what I had on my head... until yesterday...