Kal-El
Sparrow still has long ear feathers on the outside of her head. Kal has lost his as he got older
A couple of headshots. Kal's feathers on his ears/side of head aren't as long as Sparrow.
Sparrow
A stacked photo of Sparrow
A standing (not stacked) photo of Kal-El
Kal-El's front legs. He has much longer feathering here!
Sparrow doesn't have hardly any feathering on her front legs
Sparrow's isn't nearly as long.
Kal-El's belly hair is longer also
Sparrow's britches are about the same length as Kal's but not as thick
Kal-El's britches are not overly long, but are thick
Kal-El's tail. Long and full
Sparrow's tail. Not quite as full, but long