Regulation of Heat Exchange across the Hornbill Beak: Functional Similarities with Toucans?

• T. M. F. N. van de Ven ,

  * E-mail: tmfnvandeven@gmail.com

  Affiliation Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Cape Town, 7701, South Africa

  http://orcid.org/0000-0003-2486-5378

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• R. O. Martin,

  Affiliation Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Cape Town, 7701, South Africa

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• T. J. F. Vink,

  Affiliation Institute for Coastal and Marine Research, Department of Botany, Nelson Mandela Metropolitan University, Port Elizabeth, 6031, South Africa

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• A. E. McKechnie,

  Affiliation DST-NRF Centre of Excellence at the Percy FitzPatrick Institute, Department of Zoology and Entomology, University of Pretoria, Pretoria, 0002, South Africa

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• S. J. Cunningham

  Affiliation Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Cape Town, 7701, South Africa

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