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 ...

However, unintended, indirect effects of egg oiling are not well-characterized. We evaluated the influence of egg oiling on ring-billed gulls (Larus delawarensis) within the Lake Champlain basin, ...

I timed my visit to be at Bellevue around low tide. Ring-billed gull was my target. The first spring arrival in the province was due. Ring-billed gulls leave the province in the winter but come ...

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 ...