Definitions for "Precocious"
Ripe or mature before the proper or natural time; early or prematurely ripe or developed; as, precocious trees.
Developed more than is natural or usual at a given age; exceeding what is to be expected of one's years; too forward; -- used especially of mental forwardness; as, a precocious child; precocious talents.
Fruit trees that bear fruit at a young age.
Keywords:  hatching, birds, feed, themselves, able
Birds that are covered with down and are able to move about and feed themselves very soon after hatching.