scallywag vs nestling

scallywag and nestling both are nouns.

Word	Noun	Adjective	Verb	Adverb
scallywag	Yes	No	No	No
nestling	Yes	No	No	No

As nouns, nestling is a hypernym of scallywag; that is, nestling is a word with a broader meaning than scallywag:

Other hypernyms of scallywag include child, fry, kid, minor, nipper, shaver, small fry, tiddler, tike, tyke, youngster.

scallywag (noun)	nestling (noun)
one who is playfully mischievous	young bird not yet fledged
a deceitful and unreliable scoundrel	a young person of either sex
a white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest)