This photograph of the helmeted hornbill comes from this item by the Cornell Lab of Ornithology. What an incredible bird, and what a sad story.
These birds have been hunted almost to extinction because of that ivory-like horn, but conservation efforts are hoping to save them.
Do read the incredible story at the above link, of the search for survivors, of the female shutting herself up inside a tree with her young while it develops, relying entirely on the male to feed them, presumably to keep predators at bay. And the photography is superb.
This and many other species depend for a future on a new generation of people coming through that will not tolerate either poaching or habitat destruction.