The rut and the occurrence of oestrus in the Soay sheep on St Kilda.
D000818:Animals; D001947:Breeding; D003307:Copulation; D003380:Courtship; D004971:Estrus; D005260:Female; D008297:Male; D011247:Pregnancy; D012606:Scotland; D012726:Sexual Behavior, Animal; D012756:Sheep / Q000502:physiology*; D012930:Social Dominance; D013731:Territoriality