A GAGGLE is a group of geese, typically consisting of five or more birds. It is the most common collective noun used to describe a group of geese. The term is derived from the Middle English word 'gagel, ' which means 'CACKLE.' Gaggles are usually seen in open fields, wetlands, and other areas where geese can find food and shelter. They are also known to migrate in large groups, often flying in a V-shaped formation.