Ключевые слова: beak, below, bill, bird, blue, brittany, closeup, detail, feather, flight, fly, france, glide, gull, isolated, marine, migration, migratory, ocean, plumage, sea, sea swallow, seabird, seagull, sterna, sterna hirundo, sternidae, tail, tern, underneath, waterbird, white, wing, wingspan,