According to all the literature I have, only ssp Leucopsis has been recorded in Ethiopia. But many birds, like this one, have much less white throat and supercilium, than the ssp Leucopsis depicted in various Field Guides.
Both throat and supercilium are mostly buff, this makes the birds look intermediate between ssp Leucopsis and Brachyura - or sometimes more like ssp Brachyura!
This is perhaps also the reason this species is often confused with Red-faced Crombec in Ethiopia.
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