Collective nouns refer to a group of people, animals, or things considered as a single unit. Examples include:
* Team
* Family
* Crowd
* Flock
"Drove" is a noun that refers to a group of animals, typically cattle or pigs. However, it does not describe the group as a single entity. It is simply a term for a collection of individuals.
Therefore, while "drove" refers to a group, it is not a collective noun.