Indonesia
1999
Tim Laman

“Room service: A red-knobbed hornbill arrives with breakfast, which he will regurgitate for his roughly three-month-old chick safely inside a nest hole in an Alstonia tree. Though its mother has left the confines of the nest, the chick remains within for another few weeks, dependent on its parents until it fledges.”

???From “The Shrinking World of Hornbills,” July 1999, National Geographic magazine
http://www.nationalgeographic.com