Ключевые слова: animal, bearing, beauty flight, behavior, behaviour, bird, bird flight, blurred, common tern, eaters, ecology, feathers, feeding, fisheating, fisheating bird, fishing, flapping, flesh, flight, flutter, flying, flying bird, flying tern, foraging behaviour, forest, hanging, hangs place, hover, hunting, like butterfly, piscivorous, plumage, prey, pure bird, river tern, scans, scray, sea bird, sea gull, seabird, spot, sterna, sterna hirundo, surface, tail, tern, transfixed, water birds, white bird, white butterfly, wing, young tern,