the baby bird is called nestling
No, you shouldn't. If you are considering what is best for the bird, do not keep a baby cardinal in the house. All birds (including cardinals) like a lot of living space, and a house is not a good example of a lot of living space.
well if that baby bird is your pet and it can nearly fly,....... no. Trust me i have a baby bird for a pet.
A nest, or a bird house.
A bird house is called a nest.
they become migits and when they turn to bird their feather get bigger
ummm...a bird house...or a bird cage...maybe a bird nest
No, a baby bird cant, but if it is crushed it can.
That is the nature of a cat. I would put both the cat and the bird outside and let nature take its course. If you know where the nest is, you could return the baby to it, but chances are that it is already damaged.
The baby bird eats it. It's important fo baby birds to get nutrients, and the yolk contains the things a baby bird needs to grow proplerly.
At birth, a baby has approximately 300 bones. It depends on the baby.
I would think the mom bird teachs the baby bird to fly so the baby bird knows how to fly and take care of the baby the bird will have when it grows up so it can fly and take care of itself and the baby it has if it has one ^____^.