Free-range eggs are produced by hens that have daily access to an outdoor area where they can peck for worms, grubs and insects, and exercise their legs and wings. Both the natural diet and the exercise is believed to produce better meat in a poultry chicken, and is considered more humane in a laying hen. Generally, the chickens are housed in large barns, and a flap door is raised, weather permitting, for the hens to exit for a period of time each day.