Biology of hornbills in Khao Yai National Park [Thailand]
1988
Pilai Poonswad | Narong Jirawatkavi (Mahidol Univ., Bangkok (Thailand). Faculty of Science. Dept. of Microbiology) | Rungarun Liewviriyakit
Hornbills are cavity nesting species. Female seals herself into a large tree cavity. She lays eggs and raises youngs inside the nest. Through a narrow slit, the male feeds the brood through the breeding cycle. During January 1981 to June 1985, the average breeding cycles of the great (Buceroa bicornia), the wreathed (Rhiticeroa undulatus), the brown (Ptilolaemua tickelli) and the Indian pied hornbills (Anthracoceroa albirostria) were 121.4 (n=40), 126.8 (n=18), 91.8 (n=19), and 82.9 (n=39) days respectively. The average number of chicks per nest was 1, 1, 2.3 and 1.5 respectively. Fruits were considered to be the main food for all hornbill species. There were about 60 species of fruits recorded in hornbill diet. Protein, additional food, obtained from a great variety of animal, i.e. arthropods, insects, mammals, reptiles etc. The increasing of animal food indicated the chick hatching period.
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This bibliographic record has been provided by Thai National AGRIS Centre, Kasetsart University
