A group of swans is called a bevy, lamentation, or wedge. The term bevy is the most commonly used. When swans are in flight, they are often referred to as a wedge due to their V-shaped formation. The term lamentation is less common and is used when swans are on the ground.
Swans are known for their grace and beauty, and their group names reflect their elegance and the way they move together, whether on water or in the air.