Verb
To leave home; To stop living with one's parents.
To become independent; To begin to act without supervision or in ways that are not prescribed.
Used other than figuratively or idiomatically: see leave, nest.
Source: en.wiktionary.orgBoth parents incubate a brood for 23 to 24 days, and the precocial young leave the nest shortly after hatching. Source: Internet
She will "sit" or "set" on the nest, protesting or pecking in defense if disturbed or removed, and she will rarely leave the nest to eat, drink, or dust-bathe. Source: Internet
Barn Owl chicks are ready to leave the nest when they are seven to eight weeks old. Source: Internet
Squabs grow rapidly, but are slow to fledge and are ready to leave the nest at 26 to 30 days weighing about convert. Source: Internet
Fledglings leave the nest at between 40 and 55 days. Source: Internet
In most species, chicks leave the nest just before, or soon after, they are able to fly. Source: Internet