They have a particularly acute sense of hearing that allows them to distinguish between sounds that are very close in frequency. This is important for detecting predators and other potential threats in the wild. Their hearing sensitivity also allows them to learn and understand human speech and reproduce words and phrases with remarkable accuracy.
African grey parrots have two ears that are located on the sides of their head. Each ear is oriented slightly forward and downward, which helps them to collect sound from a wide area. The outer ear is covered in feathers, which help to protect the inner ear from damage. The middle ear contains three small bones that amplify sound vibrations and transmit them to the inner ear. The inner ear contains the cochlea, which is a spiral-shaped organ that contains thousands of tiny hair cells that are responsible for converting sound vibrations into electrical signals that can be interpreted by the brain.
In addition to their excellent hearing, African grey parrots also have a very good sense of vision and smell, which help them to navigate their environment and find food.