A red deer male stag walking and eating in a green field on a sunny day with a blue sky, isolated, conservation concept, close-up

deer grazing ecology eating red deer pasture habitat antlers stag cervus elaphus graze wild life animal male sunny sunny day grass buck conservation isolated daytime walk wilderness cervus outdoor mammal fauna close up closeup eat cervidae mature beauty countryside landscape scenery reserve field environment wildlife background bokeh wild animal beautiful autumn natural nature wild blue sky