Yellow-crowned/Golden Bishop Napoleon Weaver

Euplectes afer

Yellow-crowned Bishop Yellow-crowned Bishop Napoleon Weaver
The Yellow-crowned Bishop, also called the Golden Bishop and the Napoleon Weaver, is a weaver bird native to sub-Saharan Africa.
The first bird top left is certainly the male Yellow-crowned Bishop in annual breeding plumage, showing its yellow crown and full black chest and front.
The other birds shown above and below appear to have different plumage, particularly the yellow chest (but also black behind the eye), but are identified elsewhere as Euplectes afer.
Yellow-crowned Bishop Yellow-crowned Bishop Yellow-crowned Bishop
Does the male breeding plumage of the three sub-species differ?
Yellow-crowned Bishop Yellow-crowned Bishop Yellow-crowned Bishop
  Or is one of these another species?  
Yellow-crowned Bishop Yellow-crowned Bishop  
The female all-season and male non-breeding plumage of the Yellow-crowned Bishop looks similar to that of the Red Bishop  
 

  Links:

Orange Bishop  female Red Bishop Black-winged Red Bishop

 
 
Red Bishop (m) Red Bishop (f) Black-winged Red Bishop