Great hornbills are generally monogamous, many mate for life. Once the time for laying eggs comes, both search for a nest hole deep in the jungle, together. Then, the female enters the nest hole and seals the opening, leaving a slit just enough for its beak to receive food from the male. During this time, the male goes in search of food for himself as well as for the female and chicks. The male perches near the cavity, regurgitates fruits out from his gullet to the female. Several visits are made daily by the male to deliver food. During incubation period the male hornbill is every bit as crucial to the survival of his family as the female. If the male bird is killed, its entire family is buried in the nest hole.