external ear
outer ear

Examples of this rule in birds are rare, as they lack external ears.

The lack of external ears means they have very streamlined bodies.

The external ears are firstly situated in the lower neck region.

Cotton swabs should be used only to clean the external ear.

He had no noticeable external ears, and his deep brown eyes were set wide apart.

Mole rats also use sounds to communicate, even though they have no external ears.

Small nostrils were placed just above the beak, and there was no sign of external ears.

They have a flattened head and body, but no tongue or external ears.

Stickies usually had no external ears, which made it hard to communicate with them using speech.

Membrane tension by different pressures in the external and middle ear.