Mobile Menu Open Mobile Menu Close

Anatomy of the mandibles, tongue and alimentary tract of Kakapo, with some comparative information from Kea and Kaka

  • Publication Type

    Journal Article

  • Publication Year

    1993

  • Author(s)

    E.J. Kirk; R.G. Powlesland; S.C. Cork

  • Journal Name

    Notornis

  • Volume, Issue

    40, 1

  • Pagination

    55-63

  • Article Type

    paper

Keywords

No Keywords associated with this content


Anatomy of the mandibles, tongue and alimentary tract of Kakapo, with some comparative information from Kea and Kaka

Notornis, 40 (1), 55-63

E.J. Kirk; R.G. Powlesland; S.C. Cork (1993)

Article Type: paper

Attachment


Download

Preserved material from two Kakapo (Strigops habroptilus), two Kea (Nestor notabilis) and two Kaka (Nestor meridionalis) was dissected. A fledgling Kakapo had short, stout mandibles, a wide, thick tongue and a thick pharyngeal pad. The lower mandible closed against both the rostra1 end of the hard palate and the underside of the free end of the tongue. The crop was well defined. In the fledgling and in the headless body of an adult Kakapo a fusiform proventriculus was followed immediately by an approximately spherical, uniformly muscular gizzard. There were five main intestinal loops and no evidence of a vitelline diverticulum or of caeca. In Kea and Kaka the upper mandible was longer, the tongue (especially in Kaka) was narrower and fimbriated, and the crop was similar to that of the Kakapo. The mandibles, tongue and palate of the Kakapo appear to be particularly well adapted for the grinding of fibrous plant tissues to extract soft portions and juices.