|Presumed Laughing x Ring-billed. Chicago, IL. 20 April 2014.|
It's thought to have been the offspring of a Laughing/Ring-billed pair from years ago at Lake Calumet in Chicago (the first and only confirmed record of Laughing Gull breeding in Illinois). The "offspring theory" was never verified, but the hybrid was noticed after the breeding record (by Walter Marcisz and company in 2004 at a KFC near the state line).
Here's hoping for many more years of enjoying the presence of this very unique-looking gull!