1) Any recently hatched animal 2) Offspring 3) Young 1) Biddy 
In oviparious biology, a hatchling is a newly hatched fish, amphibian, reptile, or bird. A group of mammals called monotremes lay eggs, and their young are hatchlings as well. ==Fish== Fish hatchlings generally do not receive parental care, similar to reptiles. Like reptiles, fish hatchlings can be affected by xenobiotic compounds. For example, ex...
A baby bird that has emerged from an egg.
refers to bird in the few days just after hatching, or breaking out of the eggshell
a newly hatched sea turtle
a newly hatched bird.
[n] - any recently hatched animal (especially birds)
A newly hatched animal.
A newly hatched bird or animal.
noun any recently hatched animal (especially birds)