[3] 2017 genetic research determined that the three raven populations were subspecies rather than separate species, having only split 130,000 years ago.

A reconstruction of the raven is in the Museum of New Zealand Te Papa Tongarewa, specimen MNZ S.036749.

[5] The holotype of the South Island raven (formerly Corvus antipodum pycrofti) is in the collection of the Museum of New Zealand Te Papa Tongarewa.

[6] A late Holocene fossil bone of Corvus antipodum was found on Enderby Island in 1964 by New Zealand biologist Elliot Dawson.

[8] On the coast, it may have frequented the seal and penguin colonies or fed in the intertidal zone, as does the Tasmanian forest raven (C. tasmanicus).