Bent, in his Life Histories, has described this Gull perfectly.
A breeding colony is one of the most spectacular, interesting and beautiful sights in the realm of North American ornithology. Written words cannot convey the picture presented by thousands of exquisite birds, with delicate hues and gentle habits, in activities of closely populated communities.
In straggling flocks they scatter over the prairies for breakfast and return at evening. Nomadic as Indians, they wander from place to place, choosing each season the locality which suits their fancy.
In storm or sunshine of early Spring they follow the lonely settler's plow. Furrows mean food to them and to the man behind his team, prairie pigeons are well-beloved companions. Their food is principally insectiverous and after the breeding season they gather in immense flocks wherever food is abundant. They have no robber traits and even their notes are melodious and gentle.
Prairie regions of central North America. South in Winter to Gulf coast and northern South America.