Medium-size, 3-cycle gull with sloping head ... (white scapular and tertial crescents contrast, unlike the ring-billed); a red gonys spot as well as a black bill band. Legs often duller and ...
The study could also benefit more vulnerable harbour species such as white-fronted terns, red-billed gulls and oyster catchers, which are all targeted by the kelp gulls, the Department of ...
Many years, ring-billed gulls are the most common wintering gull in Kansas, having moved southward from nesting areas in central Canada and some places in the American West. Like many birds ...