bird of tropical Africa and Asia having a very large bill surmounted by a bony protuberance; related to kingfishers
hornbill详细解释
horn.bill n.（名词）Any of various tropical Old World birds of the family Bucerotidae, having a very large bill often surmounted by an enlarged protuberance at the base.犀鸟：一种犀鸟科属鸟类，产于东半球的热带地区，其嘴巨大，且基部有扩大的突出部分
