As used in this chapter, unless the context requires otherwise:
(1) “Adequate fence” means a continuous barrier consisting of natural barriers, structures, masonry, rails, poles, planks, wire or the combination thereof, installed and maintained in a condition so as to form a continuous guard and defense against the ingress or egress of cattle or equines into or from the lands enclosed by the barrier. Natural barriers may include hedges, ditches, rivers, streams, ponds or lakes.
(2) “Estray animal” means:
(a) Cattle, bison or equines that are unlawfully running at large or being permitted to do so; or
(b) Cattle or equines that are found to be trespassing on land enclosed by an adequate fence.
(3) “Taking up” means the intentional exertion of control over an estray animal, including but not limited to the restriction of movement, holding under herd, feeding, pasturing or sheltering of the animal.