Ключевые слова: adult, animal, avian, beach, beauty in nature, behaviour, bird, birds, birdwatching, black, black headed, blackheaded gull, chroicocephalus, chroicocephalus ridibundus, coming, common blackheaded gull, curiosity, demonstration, fauna, flapping wings, forward posture, gull, horizontal, humor, lake, looking at the camera, marsh, migratory, mouth, nature, nonurban scene, open, posture, rest, ridibundus, river gull, rural scenes, screaming, sea, seagulls, selective focus, species, summer plumage, swamp, tranquil scene, water, white, wild, wildlife, wings,