Black-necked Weaver (Ploceus nigricollis) [XC403545]
by Mike Nelson from Oke-Eri\/Ogbogbo, Ijebu ode, Ogun State, Nigeria (call, song)
Black-necked Weaver (Ploceus nigricollis) [XC399983]
by Bram Piot from Kakum NP, Ghana (call)
Subspecies
Often grouped with Spectacled Weaver (Ploceus ocularis) and Black-billed Weaver (Ploceus melanogaster) in a "spectacled weaver" superspecies. Nominate subspecies intergrades with brachypterus in Cameroon. Birds from Bioko I described as additional subspecies (po) on basis of longer and heavier bill; possibly worthy of recognition, but further study required.
The following 4 subspecies are recognised:
brachypterus Swainson, 1837 - Gambia and southern Senegal east to Cameroon, also Bioko I (Fernando Póo). Considered by some authors to be a distinct species, Olive-naped Weaver (Ploceus brachypterus).
nigricollis (Vieillot, 1805) - Cameroon east to southern Sudan, Uganda, western Kenya and north-western Tanzania, and south to Angola and southern DRCongo.
melanoxanthus (Cabanis, 1878) - Southern Ethiopia, southern Somalia, central and eastern Kenya and north-eastern Tanzania.