Fledge is the stage in a young bird's life when the feathers and wing muscles are sufficiently developed for flight. Birds ( class Aves) are bipedal endothermic ( Warm-blooded) Vertebrate animals that lay eggs. It also describes the act of raising chicks to a fully grown state by the chick's parents.
In ornithology, the meaning of fledging is variable, depending on species. Ornithology (from Greek ὄρνις ὄρνιθος ornis, ornithos, "bird" and λόγος logos, "knowledge" is the branch of Birds are sometimes considered fledged once they leave the nest, even if they still can't fly. A bird nest is the spot in which a Bird lays and incubates its eggs and raises its young Some definitions of fledge take it to mean the independence of the chick from the adults, as adults will often continue to feed the chick after it has left the nest and is able to fly.
One notable species, the Ancient Murrelet, fledges two days after hatching, running from its burrow to the ocean and its calling parents. The Ancient Murrelet, Synthliboramphus antiquus, is a Bird in the Auk family An ocean (from Greek, ''Okeanos'' (Oceanus) is a major body of saline water, and a principal component of the Hydrosphere. Once it reaches the ocean it is cared for several weeks by its parents. Other species, such as Guillemots and some cormorants leave the nesting site before they are able to fly, or barely able to fly. Guillemot is the Common name for several species of Seabird in the Auk family comprising two genera Uria and Cepphus The Bird family Phalacrocoracidae is represented by some 40 Species of cormorants and shags. The fledging behaviour of the guillemot is spectacular; the adult will lead the chick through the colony if possible, for large drops like cliffs, it will fly down and call to its young. The chick will then launch itself off the cliff, attempting to fly as far as possible, crash landing on the ground below before continuing its run towards the ocean.