Do you have to feed Newborn cockatiel or do the parents of the bird feed it?

Most of the time the parents will feed it

you must keep checking a couple times a day to make sure their crop is full.

sometimes the parents will not feed 1 or 2 chicks and you will have to hand feed them yourself.However be careful when you hand feed them,im not sure exactly how but you must know what your doing.Have someone show you like the vet or a near by breeder?