by eating good food
No it will grow it's normal size
It depends what kind of Parrot you get. If you get a Tropical Islander Parrot they can grow largest to about 2 ft. I used to have a Mokking Parrot who grew about 1 ft. He was a fully grown Male Mokking Parrot.
1 million miles tall
A parrot can grow up to 25cm, but it depends on the type. If it is a rainforest parrot, it can only grow up to 22cm in it's life.Read more: How_tall_can_a_parrot_grow
one to four feet long
There is no fish in the world whose head would grow separately apart from the body may be you need to change your question.
because green birds (a type of parrot) where kept in captivity until grown into parakeets/budgies/budgerigar.
No, the only fish that do that is the parrot fish.
A baby Senegal parrot is commonly referred to as a "chick." When they are newly hatched, they are called hatchlings, but once they start to grow and develop feathers, they are typically called chicks until they reach maturity.
well a parrot is a bird and a parrot fish is a fish
Yes, Amazon parrot is the common name for a parrot of the genus Amazona.
It's a cave parrot