a squeaker is the baby of a pigeon
No
It depends on age and the person using any term, but all of the following are suitable - nestling, fledgling, squab, squeaker
Depends what baby male animal it is.
Depends on what kind of animal it is for example : a horse's baby is called a foal when it's first born. A dog's baby is called a puppy and a cat's is a kitten. As you can see the name of an animal's baby depends on the animal.
That is a baby Swan.
Featherfin squeaker was created in 1901.
SWAN
cub
A baby genet is called a kit, according to the article on genets at Wikipedia.org.
newborn baby fish are called fry.
A leveret is a baby hare.
sea urchin :)