Ключевые слова: adult, aggression, animal, assault, beak, biology, bird, black, black headed, black headed gull, blackheaded, blackheaded gull, chroicocephalus, chroicocephalus ridibundus, claret, closeup, creature, farne, fauna, feather, feathers, flattened, forward posture, green, gull, larus, larus ridibundus, mouth, natural, nature, open, orbital, ornithology, outdoor, portrait profile, posture, ridibundus, ring, screaming, sea, seabird, seagull, summer plumage, sun, waterfowl, white, wild, wildlife, wing, wings,