What Is a Group of Crows Called? – Crows Collective Nouns.

The main collective noun for Crows is a murder, with other collective nouns including a hover, a horde, a mob, a parliament, a storytelling, a cauldron, a caucus, a congress, a cowardice, and a parcel. The term ‘murder’ is thought to have originated from the Old English word ‘morthor’, which means ‘to kill’, and is thought to have been used to describe a large group of Crows due to their loud and aggressive behaviour.