The Mindoro Hornbill (Penelopides mindorensis) is a species of hornbill in the Bucerotidae family. It is endemic to forests on Mindoro in the Philippines and is considered highly endangered due to habitat loss. In a bit of a gender twist, the female hornbill has a blue ocular (eye) ring, while the male has a pinkish white ocular ring. Painting the birds was a challenge as I have never painted a hornbill before. I researched the subject to learn more about the bird and its habitat. Like most endangered species, habitat loss is always a major factor in a specie's decline and human encroachment is responsible for that loss.