The Birds of Borneo authored by B.E. Smythies was first published in 1960. The cover illustrated above shows a male Rhinoceros Hornbill overlooking a traditional longhouse next to a river in the interior of Sarawak.
When Smythies’ book was first published the majority of Sarawak (and Borneo) was mostly covered by almost continuous virgin primary dipterocarp forest. Smythies was a botanist and a forester and helped draft the plans for the long term sustainable logging of Sarawak’s (mainly) virgin forests.