Amarg 'look' call as a juvenile sounds exactly the same as adult

When using the Amarg's eyeball (look) call as a juvenile, it sounds exactly the same as an adult Amarg's look call.
I am unsure if this is the intended design, but I would assume that the juveniles calls would sound different.

The Amarg 'look' call on a juvenile sounds exactly like an adult.

That the Amarg 'look' call on a juvenile would sound different to a full grown Amarg