The Great Indian Hornbill, Buceros bicornis also known as Greater Hornbill, Great Pied Hornbill and Two-horned Calao, is the largest member of the hornbill family. It is called as Iruvachchi or Iruvayan in Tamil. Great Indian Hornbill is distributed in the forests of India, the Malay Peninsula and Sumatra, Indonesia. Their impressive size and colour have helped make them a part of local cultures and rituals. The Great Hornbill is long-lived with a lifespan approaching 50 years in captivity.
The Great Indian Hornbill is a large bird, 95-120 cms. (38-47 incs.) long, with a 152 cms. (60 incs.) wingspan and having a weight of 2.15-4 kgs (4.7-8.8 lbs.). The most prominent feature of the hornbill is the bright yellow and black casque on top of its massive bill.
Hornbills form monogamous pairs. The female lays up to 2 white eggs in existing holes or crevices, either in trees or rocks. The cavities are usually natural, but some species may nest in the abandoned nests of woodpeckers and barbets. Nesting sites may be used in consecutive breeding seasons by the same pair. Before incubation, the females of all Hornbills—sometimes assisted by the male—begin to close the entrance to the nest cavity with a wall made of mud, droppings and fruit pulp. When the female is ready to lay her eggs, the entrance is just large enough for it to enter the nest, and after she has entered the nest, the remaining opening is also all but sealed shut. There is only one narrow aperture, big enough for the male to transfer food to the mother and eventually to the chicks. The function of this behaviour is apparently related to protecting the nesting site from rival hornbills and predators. Having sealed the nest it takes further five days for the first egg to be laid. Clutch size varies from one or two eggs. When the chicks and the female are too big to fit in the nest, the mother breaks out, then both parents feed the chicks. In some species the mother rebuilds the wall, whereas in others the chicks themselves rebuild the wall unaided.
The Great Indian Hornbills are great, dedicated and skillful home builders and they are native to our forests….that is the reason why we chose them to be our Logo.