My chooks have access to a wide variety of herbs and medicinals at various times. Most of the traditional Mediterranean/culinary herbs they dont touch. They eat surprisingly few. The herbs/medicinals they will readily eat are: flat leaf parsley, mint, aloe Vera, sorrel, comfrey, dandelion, calendula flowers, nasturtium, burdock, nettles. They like a nibble of young tumeric, ginger and galangal leaves also.