Common/St Helena Waxbill Estrilda astrild

Waxbill St Helena
Common Waxbill
Common Waxbill
The Common Waxbill (named after its sealing wax red, shiny bill), also called the St Helena Waxbill, is a finch with red goggles which is native to much of sub-Saharan Africa. The Common Waxbill is very similar to the Black-rumped (Red-eared) Waxbill (Estrilda troglodytes) which has a similar range. However the Common has a brown rump (not black) and a black vent (not white).
Common Waxbill
Common Waxbill
St Helena Waxbill
Male and female have similar plumage but the female's colours are less bright.
Waxbill on roller skates "I got a brand new pair of roller skates"
Common Waxbill
Common Waxbill
 
Waxbill
Waxbill
Waxbill
The two photos above right appear to have characteristics of both the St Helena (Common) Waxbill and the Black-rumped (Red-eared) Waxbill. The latter is native to central Africa overlapping the northern part of the Common Waxbill range. While they have the strong barring of the Common Waxbill and appear to have a brown rump and black vent, there is a suggestion of patch of white undertail and some white edging to the black tail -- both features of the Black-rumped. They could be hybrids since both birds were at the same location. The bird above left (same place) also may have white edging to the tail?