Robuta

https://www.scienceblogs.com/grrlscientist/2008/12/22/todays-mystery-bird-for-you-to-108 Mystery Bird: Franklin's Gull, Leucophaeus pipixcan, and Laughing Gulls, Larus atricilla |... tags: Franklin's Gull, Leucophaeus pipixcan, Laughing Gull, Larus atricilla, birds, myste franklin s gullmystery birdleucophaeus pipixcan