Two large adult chicken cockerels walking and grazing on a patch of grass

chicken hen rooster feathered animals poultry livestock brown and white spotted cockadoodledoo domestic birds roosters grazing field farm animals agriculture rural life pasture outdoor nature freerange bird behavior bird anatomy bird physiology perching bird birdwatching birdlife biodiversity feathered creature walking strutting pecking fowl beak plumage wildlife photography wildlife observation animal behavior avian creatures chickens male chickens adult birds young chickens farmyard grassland countryside natural environment domesticated feathers domestic fowl domesticated birds