Check out those bills! These are Hornbills, and they were easy to find from their noisy distinctive sounds in the thick forests of Sungai Kinabatgangan River on our little safari in Malaysian Borneo.
Unique Breeding Strategy: During mating periods, females are incarcerated in a tree cavity and fed by the male for the duration of incubation until the young are ready to leave on their own. Thus they need fairly large tree cavities, so they rely on large trees in old growth forests. Thus the presence of hornbills is actually a sign of the forest’s health.
There’s 54 species of these large birds, 8 of which are in Borneo.