suckling vs feeding

suckling and feeding both are nouns.

Word	Noun	Adjective	Verb	Adverb
suckling	Yes	No	No	No
feeding	Yes	No	No	No

As nouns, feeding is a hypernym of suckling; that is, feeding is a word with a broader meaning than suckling:

Other hypernyms of suckling include alimentation.

suckling (noun)	feeding (noun)
feeding an infant by giving suck at the breast	the act of consuming food
a young mammal that has not been weaned	the act of supplying food and nourishment
an infant considered in relation to its nurse