1977. Paperback in very good condition. Buffalo Society of Natural Sciences Miscellaneous Contributions No. 20. Bordered by two of the Great Lakes and crossed by a major river, the Niagara Frontier Region, which includes the western portion of New York State and part of the Niagara peninsula of Ontario, is outstanding area for gulls. 16 species and one subspecies have been recorded at the time of publication. Black and white photos plus map of the area.