swan

stately heavy-bodied aquatic bird with very long neck and usually white plumage as adult

Any one of numerous species of large aquatic birds belonging to Cygnus, Olor, and allied genera of the subfamily Cygninæ. They have a large and strong beak and a long neck, and are noted for their graceful movements when swimming. Most of the northern species are white. In literature the swan was fabled to sing a melodious song, especially at the time of its death.

to declare or affirm solemnly and formally as true

move about aimlessly or without any destination, often in search of food or employment

sweep majestically