Osteometry and systematics of the extinct New Zealand ravens (Aves: Corvidae: Corvus)

  title={Osteometry and systematics of the extinct New Zealand ravens (Aves: Corvidae: Corvus)},
  author={B. J. Gill},
  journal={Journal of Systematic Palaeontology},
  pages={43 - 58}
  • B. Gill
  • Published 1 January 2003
  • Geology
  • Journal of Systematic Palaeontology
Synopsis Measurements of Holocene raven bones from New Zealand show that birds from the Chatham Islands were significantly larger, on average, than those from the South Island, which were in turn significantly larger than North Island birds. Size variation on the North and South Islands appears to have been clinal in accordance with Bergmann's Rule. Three taxa are recognised: the Chatham Islands raven Corvus moriorum Forbes, 1892, the North Island raven C. antipodum antipodum (Forbes, 1893) and… 

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