There is an interesting paper in Nature on bird colouration

Dale, J., Dey, C. J., Delhey, K., Kempenaers, B., & Valcu, M. (2015). The effects of life history and sexual selection on male and female plumage colouration. Nature.

downloadable from

http://www3.nd.edu/…/Dale_et_al_Nature_2015_Bird_Plumage.pdf

but it would seem that the ID of the the Bradornis Flycatcher in Figure 1c is erronous. The white throat and the fine streaking on the crown suggest African Grey Flycatcher Bradornis microrhynchus

I attach what we think is a genuine Pale Flycatcher