I'll give you ones I know of..

WHIPSNADE: Possible to see in an Asian enclosure with also deer and Bactrian Camels.

HIGHLAND WILDLIFE: Seen through the entrance drive through reserve or the walkway through it.

NOAH'S ARK ZOO FARM: This one has one horn, during falling over and damaging it, although Yolanda can be seen with the camels here.

WEST MILDLAND: Off-show

WETLANDS WILDLIFE PARK

AUCHIINGARRICH WILDLIFE CENTRE