Media type: E-Article Title: A new subspecies of the Red-billed Hornbill, Tockus erythrorhynchus, from West Africa Contributor: Treca, Bernard; Erard, Christian Published: Informa UK Limited, 2000 Published in: Ostrich, 71 (2000) 3-4, Seite 363-366 Language: English DOI: 10.1080/00306525.2000.9639831 ISSN: 0030-6525; 1727-947X Keywords: Ecology, Evolution, Behavior and Systematics Origination: Footnote: