A GAGGLE of geese is a collective noun used to describe a group of geese. It is the most commonly used term for a flock of geese, and is typically used when referring to a large group of geese. A SKEIN of geese is another collective noun used to describe a group of geese, but it is less commonly used than GAGGLE. Skeins are usually used to refer to a smaller group of geese, or a group of geese flying in a V-shaped formation. Vees is another collective noun used to describe a group of geese, and it is used to refer to a group of geese flying in a V-shaped formation. VEE is a variation of vees, and is used to refer to a single V-shaped formation of geese.