Lake Gull

tags: Lake Gull, Common Gull, Ring-billed Gull, Larus delawarensis, birds, mystery bird, bird ID quiz [Mystery bird] Ring-billed Gull, also known as the Common Gull or Lake Gull, Larus delawarensis, photographed at Bolivar Peninsula, Galveston County, Texas. [I will identify this bird for you in 48 hours] Image: Joseph Kennedy, March 2010 [larger view]. Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/640s f/8.0 at 1000.0mm iso400. Please name at least one field mark that supports your identification. Review all mystery birds to date.