It's all in the Eye - Vulturine Guineafowl
Vulturine Guineafowl (Acryllium vulturinum) named for the obvious reasons are both monomorphic and monochromatic - meaning that both sexes have a very similar form and coloration.
Vulturine Guineafowl are excellent runner and rarely fly, with exception of reaching nocturnal roosting perches. This one (male or female ?) flew into these bushes to reach out for the seeds.
More info: en.wikipedia.org/wiki/Vulturine_Guineafowl
Photo taken in the Shaba National Reserve, Kenya
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