The definition of Free Range eggs is that the hens “have access to outdoors”. Nature Plus feels this requirement is inadequate so we created our own definition for Pasture-Raised. All our farmers with Pasture-Raised chickens agree to ensure that the majority of birds truly are going outside when conditions permit. They also ensure that there is always green grass available on the pasture. Chickens will quickly destroy grass in a small area so this requires a large pasture.