== == A young eagle is called an eaglet or fledgling.
talon
An aerie, a convocation
Your son will be a nephew to your brother, and will call him "Uncle".
You do you call your sons's son your "grandson" !
You would call the son of a lord, John, son of Lord So-and-So
an eagle is 'un aigle' in French.
Baby eagles are called eaglets.
I'd normally call him by his first name. And the son of your aunt is your first cousin.
His name.
Your sister's son will call you his uncle, if you are a man, or his aunt, if you are a woman.
your co son.
Phille Dillia Philly