Ключевые слова: accipitridae, accipitriformes, adult, animal, aves, berkel and rodenrijs, bird, bird of prey, bird watching, birds, carnivore, circus aeruginosus, drove, europe, fauna, feather, feathers, flying, grass, holland, hot, hunter, in flight, july, landscape, male, meadow, migration bird, morning, naturally, nobody, one, ornithology, outdoor, outside, polder, predator, southholland, summer, summertime, the netherlands, western marsh harrier, wing, wings,