roundup — the driving together of cattle, horses, etc., for inspection, branding, shipping to market, or the like, as in the western U.S.
adjective herding
grazing — a touching or rubbing lightly in passing.
pasturing — Also called pastureland [pas-cher-land, pahs-] /ˈpæs tʃərˌlænd, ˈpɑs-/ (Show IPA). an area covered with grass or other plants used or suitable for the grazing of livestock; grassland.
