fledgeling vs beginner

fledgeling and beginner both are nouns.

Word	Noun	Adjective	Verb	Adverb
fledgeling	Yes	Yes	No	No
beginner	Yes	No	No	No

As nouns, beginner is a hypernym of fledgeling; that is, beginner is a word with a broader meaning than fledgeling:

Other hypernyms of fledgeling include initiate, novice, tiro, tyro.

fledgeling (noun)	beginner (noun)
young bird that has just fledged or become capable of flying	someone new to a field or activity
any new participant in some activity	a person who founds or establishes some institution

fledgeling (adjective)	beginner (adjective)
(of a young bird) having acquired its flight feathers