Q.Pinna is part of external ear and it is found in mammals. Do aves and reptiles show external ear in any form?

Step 1. Reptiles have a tympanum representing the ear, with no external pinna.

Step 2. Birds also have no external pinna — hearing structures are internal, with only a simple opening leading to them, unlike the fleshy external pinna unique to mammals. …

• Assuming any visible ear opening counts as a 'pinna' — a pinna is specifically the fles …