birdnesting vs hunting

birdnesting and hunting both are nouns.

Word	Noun	Adjective	Verb	Adverb
birdnesting	Yes	No	No	No
hunting	Yes	No	No	No

As nouns, hunting is a hypernym of birdnesting; that is, hunting is a word with a broader meaning than birdnesting:

birdnesting: hunting for birds' nests to get the eggs
hunting: the work of finding and killing or capturing animals for food or pelts

Other hypernyms of birdnesting include hunt.

birdnesting (noun)	hunting (noun)
hunting for birds' nests to get the eggs	the work of finding and killing or capturing animals for food or pelts
	the pursuit and killing or capture of wild animals regarded as a sport
	the activity of looking thoroughly in order to find something or someone