They write:

We have several 8'x14', always-moving mobile coops in which our layers sleep on roosts and lay their eggs in nests, but otherwise they spend their days outside year round on fresh wide-open pasture, gaining approximately a third of their annual nutritional intake from the land and grains that we grow on the farm to supplement the layer-ration they eat. They are protected by a great pyrenees dog that has bonded with them and, if the several roosters in the flock are fulfilling one of their many roles, the eggs are fertile. The birds are happy, have so much space that they feel no need to be aggressive with each other and are allowed to live out their days with the flock without being culled.