Franklin's gull / Präriemöwe (Leucophaeus pipixcan)
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Wikipedia: Franklin's gull Source: OTHER Franklin%27s_Gull%2C_Calgary.jpg

Classification: Genus Leucophaeus (Leucophaeus); Family Gulls (Laridae)
This bird appears across the great seas in the following continents: Europe, North America, South America, Africa.
General:

🔍 No documented observation