black angus calves and cow on summer day standing in grass

aberdeen agribusiness agricultural agriculture angus animal animals background beef black bovine breed brown bull bullherd bulls calf calves cattle colors country countryside cow cows crossbred cute dairy day domestic evening farm farmer farming farmland field forest grassland grazing green heifer heifers herd industry livestock looking mammal meadow mooing nature outdoors paddock pasture portrait ranch rural standing steer summer sun sunlight sunny trees nose grass