Alces alces, moose, male, males, bulls, bull, cow, female, ungulate, ungulates, Hoofed mammals, hoofed mammal, animals, mammals, animal, mammal, wildlife, large deer, big, U.S.A., United States, North America, Wyoming, Yellowstone National Park, Round Prairie, horizontal, willows, shiras moose, shirasi, Wyoming moose, fauna, snow, winter, eating, grazing, food, leesonphoto, landscape, animalscape, wildlife in scene