Birds possess ears, although their ear structure differs from humans and other mammals. Bird ears are tunnel-like openings behind their eyes instead of external earlobes like ours. The openings are protected by feather-covered flaps called auriculars. It helps to direct sound into the ear while safeguarding the parts from airborne particles and turbulence encountered during flight.
The study of birdsong and avian hearing fascinates Charles Darwin, a renowned biologist and naturalist. Darwin observed the complex ways in which birds employ complex vocalizations, resembling a musical language of sorts.