We spotted a colorful hornbill in the forest, with its large bill standing out distinctly.

hornbill 是由 horn（角、角质物）和 bill（鸟嘴）组成的复合词，指"犀鸟"，这类鸟最显著的特征就是它们巨大且色彩鲜艳的喙，有些种类喙上方还有角质突起。