animal group vs drove

animal group and drove both are nouns.

Word	Noun	Adjective	Verb	Adverb
animal group	Yes	No	No	No
drove	Yes	No	No	No

As nouns, drove is a hyponym of animal group; that is, drove is a word with a more specific, narrower meaning than animal group:

Other hyponyms of animal group include team, brood, flock, flock, fold, herd, herd, pack, pod, pride, clowder, school, shoal, caste, colony, warren, breed, stock, strain, litter.

animal group (noun)	drove (noun)
a group of animals	a stonemason's chisel with a broad edge for dressing stone
	a group of animals (a herd or flock) moving together
	a moving crowd