How long can a pelican beak grow?

A pelican's beak can grow to be quite large, typically measuring between 12 to 18 inches (30 to 46 centimeters) in length, depending on the species. The beak is not only long but also notably wide and has a distinctive pouch used for catching fish. The size of the beak varies among different pelican species, with the American white pelican having one of the largest.