Another distinctive genus of the African tropics, the batis are small and stout insectivorous birds and considered part of the wattle-eye family. Although they are strikingly patterned and exhibit sexual dimorphism (the males are primarily black and white, while the females often have some chestnut coloration), they can be difficult to identify as the field marks of different species are only subtly varied. There are six species of batis in Tanzania and their distributions overlap considerably. I photographed these batis in some coastal scrub on Mafia Island in the Rufiji River delta, where we spent a weekend primarily scuba diving and searching for whale sharks. I think they are a male-female pair of Pale Batis, but without my field guide handy, it's hard to be certain.