How long is the beak of a rock pigeons?

Rock pigeons (Columba livia) typically have a beak length of around 15-20 millimeters (0.59-0.79 inches). The beak, also known as the bill, consists of an upper and lower mandible that come together to form a hard, pointed structure. The shape and size of the beak vary slightly among different types of rock pigeons, with some subspecies exhibiting slightly longer or shorter beaks compared to the average range mentioned above.