This answer doesn't just apply to Birds'...
Yes, it's OK to place a fallen baby bird back in the nest. It's a myth parent birds will kill babies that have human scent on them. The parents will care for it if the baby bird isn't ill. Baby birds often end up out of the nest because parent birds "kick" them out due to illness. Seems cruel, but it's how Mother Nature works.
Yes,yes it is.
A bird could kick a raptors butt anytime. So the answer is no.
While in the womb or after he or she is born? The baby tends to kick a lot when you start approaching your third trimester. Babies that are born tend to kick often too, especially when upset or excited.
the bird need nest to lay egg when the egg hatch a baby bird need nest the mother feed him and take care of him if the baby sick the mother kick the baby out the nest
You don't make the baby kick. It will kick when it's ready and when it wants to.
the southern cassowary has the hardest kick and als the sharpest claws out of any bird
after its out your stomach it can kick you in the face.
if you got a baby im a kick yo ass if you got a baby im a kick yo ass
hit it
It depends. Sometimes a father bird dies, as they assist in feeding babies, and the mother can't handle all of them so she tosses the weaker ones out. But sometimes, if the baby has all of its feathers, it is supposed to be out of the nest. It may have died because of a disease, or it might have starved.
The ostrich is reputedly able to do that.