Classification
There are four sub-species: A. melanura melanura, A. melanura dumerii, A. melanura oneho, and A. melanura obscura. The Chatham Island Bellbird, A. melanocephala, which became extinct in the early 20th century, was formerly classified as a subspecies of the New Zealand Bellbird, as A.melanura melanocephala.
Read more about this topic: New Zealand Bellbird