Pigeon

Pigeons have the best hearing animals kingdom thanks to a unique adaptation that allows them to hear in “infrasounds.” Pigeons are among the greatest navigators among animals. Because of the faith placed in them, they have even been employed to deliver messages during battles. They have superb hearing and can perceive sounds at far lower frequencies than humans, including distant storms and volcanoes.

Their ears are not external like those of other birds; instead, they have an ear-opening buried behind feathers on the side of their head. The ear hole is positioned exactly where you'd expect an external ear to be if they had one, somewhat behind and below the eyes. These remarkable birds were first supposed to navigate using just the sun's location and the earth's magnetic field. Researchers now think they employ "infrasounds" (low-frequency sounds) to get back to their homes. Pigeons can also attain tremendous speeds, with brief bursts reaching 77.6 mph.

Sensing Sound Frequencies: As low as just 0.05 Hz