Hatchling, nestling, fledgling.
From hatch - hatchling, nestling, fledgling
Either a nestling, a fledgling or a chick.
A fledgling pigeon is called a "squab".
It depends on age and the person using any term, but all of the following are suitable - nestling, fledgling, squab, squeaker
Raccoons are usually unable to capture a flying adult sparrow but will take a nestling or fledgling sparrow if the opportunity presents itself.
Beijing, Chonqing, etc.
There is no such thing as a baby nestling, the term nestling is defined as a baby bird.
A human who has become imprinted with a vampyre
bovines equine swine porcupine
a eyas is a nestling hawk - a eyas is a nestling hawk -
a bird that is too young to leave its nest is known Nestling