Rhinoceros hornbills are iconic Borneo birds threatened by deforestation. Their specialized ecology makes them highly sensitive to habitat loss and forest fragmentation.
Rhinoceros hornbill welfare depends on intact Bornean rainforest with large old trees. Nesting requires specific cavity dimensions in trees of substantial girth — increasingly rare in selectively logged or converted forest. Pairs must maintain the nest through extended incubation periods where the male alone provides food — disruption of either partner causes nest failure and likely death of sealed-in female and chicks. Hunting for casques is illegal but continues. Supporting deforestation-free palm oil and timber certification protects the habitat these birds require and reduces the welfare harm from habitat loss and nest failure.