Genus NOTORNIS, general bill characteristics.
Buller
<a href="//commons.wikimedia.org/wiki/User:Kersti_Nebelsiek" title="User:Kersti Nebelsiek">Kersti</a> 15:14, 4 February 2008 (UTC)
<a rel="nofollow" class="external text" href="http://www.nzetc.org/tm/scholarly/tei-BulBird-t1-g1-t1-front-d6-d6-d2.html">Walter Lawry Buller (1838-1906). <i>A History of the Birds of New Zealand</i>. 1888</a>