The Black-Footed Penguins by George Edwards The Bill of the fronting Figure is Black, hooked at the Point of the upper Chop, and seeming to be cut off at the Point of the lower, into which Cleft the over-hanging Part of the upper fails; it is something compressed sideways and furrow'd.
Excerpt from A Natural History of Uncommon Birds
The Black-Footed Penguins by George Edwards