Date: February 19, 2005
Location: North Point Marina, Lake County Illinois
Comments: The bicolored bill suggests Glaucous Gull but note the rounded head, large eye, and conspicuous gray centers to the folded primaries. The eye width to bill length ratio is about 2.5; an eye width to bill length ratio of less than 4 is considered acceptable for Iceland Gull compared to Glaucous Gull.