have an undeveloped casque and a smaller bill. Their black plumage lacks the green gloss found on adults. The calls of the oriental pied hornbill have been described as crowlike sounds, braying sounds or harsh crackles and screeches Distribution and habitat The oriental pied hornbill is found in the Indian Subcontinent and Southeast Asia, ranging across Bangladesh, Bhutan, Brunei, Cambodia, Eastern and Northern India, Indonesia, Laos, peninsular Malaysia, Myanmar, Nepal, Singapore, Thailand, Tibet, Vietnam and the Sunda shelf islands. Its natural habitat is subtropical or tropical moist lowland forests. Within these regions, A. albirostris occupies various habitat types, which include dry and semi-evergreen forests, dry and moist deciduous forests, subtropical broadleaf forests, secondary forests, plantations and woodlands. Behaviour and ecology Feeding Hornbills are predominantly frugivores. The oriental pied hornbill's diet consists of wild fruits such as figs (Ficus spp.), melanoxylon berries, rambutans, palm fruit, papaya and fruits of liana plants. It will also take large insects (grasshoppers), small birds (finches) small reptiles (lizards and snakes), amphibians such as frogs, fish, and bats. Its diet differs slightly between the breeding and non-breeding season. During the non-breeding season, oriental pied hornbills feed more on non-fig fruit such as small sized berries, drupes, arillate capsules and lianas (woody vines), however the availability of these food items is lower in the breeding season, which suggests that the species increases its habitat range during that time. They also tend to feed in flocks during the non breeding season. When foraging for food, they tend to select a few common species of fruit trees. They show a preference towards trees belonging to the families Annonaceae, Meliaceae and Myristicaceae. Other target species include Rourea minor, Polyalthia viridis, Cinnamomum subavenium, Trichosanthes tricuspidata, and many others. Feeding on a diversity of fruits ensure that nutritional requirements are met. In the non-breeding season fruits that are selected for are generally sugar rich, while lipid-rich fruits and invertebrates are highly selected for during the breeding season. Oriental pied hornbills are important large seed dispersers, promoting seedling recruitment by translocating the seeds of the fruits they feed on. Few other bird species outside the hornbill family have large enough gape widths to allow them to disperse large seeds to special microsites or open habitats. Seed dispersal behavior of hornbills thus helps shape forest communities, and disruption of this animal-plant interaction may have significant impacts on the reshaping of forest communities. Reproduction Hornbills