well, if they can hear you,and look atyou when you make a noise, that kinda tellsyou that they have ears.
U hear a pop in ur ears.....
If you pop your ear drum there would be a great deal of pain. Also there tends to be a liquid that would run out of the ear. Also you would not be able to hear from that ear unitl the ear drum healed.
your ear hurts and your jaw hurts. plus it makes you dizzy.
Birds have tympanum-like structures under their feathers. Whistle at it and see if it reacts.