Great Hornbill <i><a href="//commons.wikimedia.org/wiki/Buceros_bicornis" title="Buceros bicornis">Buceros bicornis</a></i>
<bdi><a href="https://en.wikipedia.org/wiki/en:Richard_Lydekker" class="extiw" title="w:en:Richard Lydekker"><span title="English naturalist, geologist and writer">Richard Lydekker</span></a>
</bdi>
1895
Lydekker, R. 1895 The Royal Natural History. Volume 4. Frederick Warne and Co. (from www.archive.org)