Ключевые слова: 30 year old, 30s, adult, analysis, autumn, biologist, camera, concentrated, documentation, documenting, environment, environmental, equipment, fall, horizontal, male, man, nature, observation, observing, outdoor, outdoors, outside, photo camera, photographer, photographing, portrait, professional, professional equipment, research, researcher, science, scientific, scientist, season, serious, study, studying, thirty, two people, work, young man, young researcher, young scientist,