hatchling

/HH AE1 CH L IH0 NG/
noun
  1. 1

    A newly hatched bird, reptile or other animal that has emerged from an egg.

    โ€œThe hatchling alligator had just broken out of its shell but was already trying to follow its mother, who hunted hatchling birds.โ€

Source: https://en.wiktionary.org/wiki/hatchling